Home / 129,123.26-193,654.14-54,244.86

Finding the Fourth Proportional to 129,123.26, 193,654.14 and 54,244.86

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Solution

The fourth proportional to 129,123.26, 193,654.14 and 54,244.86 is: 81,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,123.26 : 193,654.14 = 54,244.86 : x
  2. Step 2: Convert to fraction form
    129,123.26/193,654.14 = 54,244.86/x
  3. Step 3: Cross multiply
    129,123.26x = 193,654.14 × 54,244.86
  4. Step 4: Simplify right side
    129,123.26x = 10,504,742,722.18
  5. Step 5: Solve for x
    x = 10,504,742,722.18/129,123.26
  6. Step 6: Final answer
    x = 81,354.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.