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Finding the Fourth Proportional to 123,259.62, 169,944.03 and 102,871.11

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Solution

The fourth proportional to 123,259.62, 169,944.03 and 102,871.11 is: 141,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,259.62 : 169,944.03 = 102,871.11 : x
  2. Step 2: Convert to fraction form
    123,259.62/169,944.03 = 102,871.11/x
  3. Step 3: Cross multiply
    123,259.62x = 169,944.03 × 102,871.11
  4. Step 4: Simplify right side
    123,259.62x = 17,482,331,003.97
  5. Step 5: Solve for x
    x = 17,482,331,003.97/123,259.62
  6. Step 6: Final answer
    x = 141,833.40

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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.