Home / 129,245.25-193,881.78-54,373.02

Finding the Fourth Proportional to 129,245.25, 193,881.78 and 54,373.02

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Solution

The fourth proportional to 129,245.25, 193,881.78 and 54,373.02 is: 81,565.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,245.25 : 193,881.78 = 54,373.02 : x
  2. Step 2: Convert to fraction form
    129,245.25/193,881.78 = 54,373.02/x
  3. Step 3: Cross multiply
    129,245.25x = 193,881.78 × 54,373.02
  4. Step 4: Simplify right side
    129,245.25x = 10,541,937,901.58
  5. Step 5: Solve for x
    x = 10,541,937,901.58/129,245.25
  6. Step 6: Final answer
    x = 81,565.38

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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.