Home / 105,138,045.90-157,707,068.85-68,858,340.30

Finding the Fourth Proportional to 105,138,045.90, 157,707,068.85 and 68,858,340.30

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Solution

The fourth proportional to 105,138,045.90, 157,707,068.85 and 68,858,340.30 is: 103,287,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,138,045.90 : 157,707,068.85 = 68,858,340.30 : x
  2. Step 2: Convert to fraction form
    105,138,045.90/157,707,068.85 = 68,858,340.30/x
  3. Step 3: Cross multiply
    105,138,045.90x = 157,707,068.85 × 68,858,340.30
  4. Step 4: Simplify right side
    105,138,045.90x = 10,859,447,014,588,828
  5. Step 5: Solve for x
    x = 10,859,447,014,588,828/105,138,045.90
  6. Step 6: Final answer
    x = 103,287,510.45

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.