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Finding the Fourth Proportional to 123,126.06, 169,913.95 and 69,411.08

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Solution

The fourth proportional to 123,126.06, 169,913.95 and 69,411.08 is: 95,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,126.06 : 169,913.95 = 69,411.08 : x
  2. Step 2: Convert to fraction form
    123,126.06/169,913.95 = 69,411.08/x
  3. Step 3: Cross multiply
    123,126.06x = 169,913.95 × 69,411.08
  4. Step 4: Simplify right side
    123,126.06x = 11,793,909,753.47
  5. Step 5: Solve for x
    x = 11,793,909,753.47/123,126.06
  6. Step 6: Final answer
    x = 95,787.28

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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.