Home / 129,306.36-193,802.58-54,397.56

Finding the Fourth Proportional to 129,306.36, 193,802.58 and 54,397.56

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Solution

The fourth proportional to 129,306.36, 193,802.58 and 54,397.56 is: 81,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,306.36 : 193,802.58 = 54,397.56 : x
  2. Step 2: Convert to fraction form
    129,306.36/193,802.58 = 54,397.56/x
  3. Step 3: Cross multiply
    129,306.36x = 193,802.58 × 54,397.56
  4. Step 4: Simplify right side
    129,306.36x = 10,542,387,473.70
  5. Step 5: Solve for x
    x = 10,542,387,473.70/129,306.36
  6. Step 6: Final answer
    x = 81,530.31

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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.