Home / 129,711.39-194,572.92-39,747.63

Finding the Fourth Proportional to 129,711.39, 194,572.92 and 39,747.63

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Solution

The fourth proportional to 129,711.39, 194,572.92 and 39,747.63 is: 59,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,711.39 : 194,572.92 = 39,747.63 : x
  2. Step 2: Convert to fraction form
    129,711.39/194,572.92 = 39,747.63/x
  3. Step 3: Cross multiply
    129,711.39x = 194,572.92 × 39,747.63
  4. Step 4: Simplify right side
    129,711.39x = 7,733,812,432.18
  5. Step 5: Solve for x
    x = 7,733,812,432.18/129,711.39
  6. Step 6: Final answer
    x = 59,623.23

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1.5x scale

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.