Home / 122,637.11-169,285.46-71,666.44

Finding the Fourth Proportional to 122,637.11, 169,285.46 and 71,666.44

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Solution

The fourth proportional to 122,637.11, 169,285.46 and 71,666.44 is: 98,926.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,637.11 : 169,285.46 = 71,666.44 : x
  2. Step 2: Convert to fraction form
    122,637.11/169,285.46 = 71,666.44/x
  3. Step 3: Cross multiply
    122,637.11x = 169,285.46 × 71,666.44
  4. Step 4: Simplify right side
    122,637.11x = 12,132,085,480.42
  5. Step 5: Solve for x
    x = 12,132,085,480.42/122,637.11
  6. Step 6: Final answer
    x = 98,926.71

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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.