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Finding the Fourth Proportional to 123,045.31, 169,803.03 and 69,331.15

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Solution

The fourth proportional to 123,045.31, 169,803.03 and 69,331.15 is: 95,677.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,045.31 : 169,803.03 = 69,331.15 : x
  2. Step 2: Convert to fraction form
    123,045.31/169,803.03 = 69,331.15/x
  3. Step 3: Cross multiply
    123,045.31x = 169,803.03 × 69,331.15
  4. Step 4: Simplify right side
    123,045.31x = 11,772,639,343.38
  5. Step 5: Solve for x
    x = 11,772,639,343.38/123,045.31
  6. Step 6: Final answer
    x = 95,677.27

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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.