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Finding the Fourth Proportional to 132,387, 182,568.33 and 87,103.41

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Solution

The fourth proportional to 132,387, 182,568.33 and 87,103.41 is: 120,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,387 : 182,568.33 = 87,103.41 : x
  2. Step 2: Convert to fraction form
    132,387/182,568.33 = 87,103.41/x
  3. Step 3: Cross multiply
    132,387x = 182,568.33 × 87,103.41
  4. Step 4: Simplify right side
    132,387x = 15,902,324,101.01
  5. Step 5: Solve for x
    x = 15,902,324,101.01/132,387
  6. Step 6: Final answer
    x = 120,119.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.