Home / 123,141.20-169,943.64-69,431.24

Finding the Fourth Proportional to 123,141.20, 169,943.64 and 69,431.24

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Solution

The fourth proportional to 123,141.20, 169,943.64 and 69,431.24 is: 95,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,141.20 : 169,943.64 = 69,431.24 : x
  2. Step 2: Convert to fraction form
    123,141.20/169,943.64 = 69,431.24/x
  3. Step 3: Cross multiply
    123,141.20x = 169,943.64 × 69,431.24
  4. Step 4: Simplify right side
    123,141.20x = 11,799,397,655.31
  5. Step 5: Solve for x
    x = 11,799,397,655.31/123,141.20
  6. Step 6: Final answer
    x = 95,820.06

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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.