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Finding the Fourth Proportional to 132,402.67, 182,744.78 and 87,084.79

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Solution

The fourth proportional to 132,402.67, 182,744.78 and 87,084.79 is: 120,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,402.67 : 182,744.78 = 87,084.79 : x
  2. Step 2: Convert to fraction form
    132,402.67/182,744.78 = 87,084.79/x
  3. Step 3: Cross multiply
    132,402.67x = 182,744.78 × 87,084.79
  4. Step 4: Simplify right side
    132,402.67x = 15,914,289,897.61
  5. Step 5: Solve for x
    x = 15,914,289,897.61/132,402.67
  6. Step 6: Final answer
    x = 120,196.14

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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.