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Finding the Fourth Proportional to 88,001.40, 131,786.80 and 79,472.11

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Solution

The fourth proportional to 88,001.40, 131,786.80 and 79,472.11 is: 119,013.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,001.40 : 131,786.80 = 79,472.11 : x
  2. Step 2: Convert to fraction form
    88,001.40/131,786.80 = 79,472.11/x
  3. Step 3: Cross multiply
    88,001.40x = 131,786.80 × 79,472.11
  4. Step 4: Simplify right side
    88,001.40x = 10,473,375,066.15
  5. Step 5: Solve for x
    x = 10,473,375,066.15/88,001.40
  6. Step 6: Final answer
    x = 119,013.73

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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.