Home / 158,372.27-218,553.79-86,753.47

Finding the Fourth Proportional to 158,372.27, 218,553.79 and 86,753.47

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Solution

The fourth proportional to 158,372.27, 218,553.79 and 86,753.47 is: 119,719.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,372.27 : 218,553.79 = 86,753.47 : x
  2. Step 2: Convert to fraction form
    158,372.27/218,553.79 = 86,753.47/x
  3. Step 3: Cross multiply
    158,372.27x = 218,553.79 × 86,753.47
  4. Step 4: Simplify right side
    158,372.27x = 18,960,298,354.50
  5. Step 5: Solve for x
    x = 18,960,298,354.50/158,372.27
  6. Step 6: Final answer
    x = 119,719.81

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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.