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Finding the Fourth Proportional to 122,757.11, 169,403.14 and 69,042.11

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Solution

The fourth proportional to 122,757.11, 169,403.14 and 69,042.11 is: 95,277.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,757.11 : 169,403.14 = 69,042.11 : x
  2. Step 2: Convert to fraction form
    122,757.11/169,403.14 = 69,042.11/x
  3. Step 3: Cross multiply
    122,757.11x = 169,403.14 × 69,042.11
  4. Step 4: Simplify right side
    122,757.11x = 11,695,950,131.64
  5. Step 5: Solve for x
    x = 11,695,950,131.64/122,757.11
  6. Step 6: Final answer
    x = 95,277.17

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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.