Home / 115,386.90-159,179.31-75,085.97

Finding the Fourth Proportional to 115,386.90, 159,179.31 and 75,085.97

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Solution

The fourth proportional to 115,386.90, 159,179.31 and 75,085.97 is: 103,583.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,386.90 : 159,179.31 = 75,085.97 : x
  2. Step 2: Convert to fraction form
    115,386.90/159,179.31 = 75,085.97/x
  3. Step 3: Cross multiply
    115,386.90x = 159,179.31 × 75,085.97
  4. Step 4: Simplify right side
    115,386.90x = 11,952,132,099.38
  5. Step 5: Solve for x
    x = 11,952,132,099.38/115,386.90
  6. Step 6: Final answer
    x = 103,583.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.