Home / 129,602.25-194,479.92-54,717.55

Finding the Fourth Proportional to 129,602.25, 194,479.92 and 54,717.55

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Solution

The fourth proportional to 129,602.25, 194,479.92 and 54,717.55 is: 82,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,602.25 : 194,479.92 = 54,717.55 : x
  2. Step 2: Convert to fraction form
    129,602.25/194,479.92 = 54,717.55/x
  3. Step 3: Cross multiply
    129,602.25x = 194,479.92 × 54,717.55
  4. Step 4: Simplify right side
    129,602.25x = 10,641,464,260.40
  5. Step 5: Solve for x
    x = 10,641,464,260.40/129,602.25
  6. Step 6: Final answer
    x = 82,108.64

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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.