Home / 129,712.39-194,643.61-54,827.69

Finding the Fourth Proportional to 129,712.39, 194,643.61 and 54,827.69

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Solution

The fourth proportional to 129,712.39, 194,643.61 and 54,827.69 is: 82,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,712.39 : 194,643.61 = 54,827.69 : x
  2. Step 2: Convert to fraction form
    129,712.39/194,643.61 = 54,827.69/x
  3. Step 3: Cross multiply
    129,712.39x = 194,643.61 × 54,827.69
  4. Step 4: Simplify right side
    129,712.39x = 10,671,858,399.27
  5. Step 5: Solve for x
    x = 10,671,858,399.27/129,712.39
  6. Step 6: Final answer
    x = 82,273.24

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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.