Home / 123,147.60-169,940.28-69,432.14

Finding the Fourth Proportional to 123,147.60, 169,940.28 and 69,432.14

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Solution

The fourth proportional to 123,147.60, 169,940.28 and 69,432.14 is: 95,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,147.60 : 169,940.28 = 69,432.14 : x
  2. Step 2: Convert to fraction form
    123,147.60/169,940.28 = 69,432.14/x
  3. Step 3: Cross multiply
    123,147.60x = 169,940.28 × 69,432.14
  4. Step 4: Simplify right side
    123,147.60x = 11,799,317,312.60
  5. Step 5: Solve for x
    x = 11,799,317,312.60/123,147.60
  6. Step 6: Final answer
    x = 95,814.43

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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.