Home / 102,566.30-153,849.45-68,740.70

Finding the Fourth Proportional to 102,566.30, 153,849.45 and 68,740.70

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Solution

The fourth proportional to 102,566.30, 153,849.45 and 68,740.70 is: 103,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,566.30 : 153,849.45 = 68,740.70 : x
  2. Step 2: Convert to fraction form
    102,566.30/153,849.45 = 68,740.70/x
  3. Step 3: Cross multiply
    102,566.30x = 153,849.45 × 68,740.70
  4. Step 4: Simplify right side
    102,566.30x = 10,575,718,887.62
  5. Step 5: Solve for x
    x = 10,575,718,887.62/102,566.30
  6. Step 6: Final answer
    x = 103,111.05

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1.5x scale

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.