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Finding the Fourth Proportional to 88,211.70, 133,047.90 and 82,379.70

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Solution

The fourth proportional to 88,211.70, 133,047.90 and 82,379.70 is: 124,251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,211.70 : 133,047.90 = 82,379.70 : x
  2. Step 2: Convert to fraction form
    88,211.70/133,047.90 = 82,379.70/x
  3. Step 3: Cross multiply
    88,211.70x = 133,047.90 × 82,379.70
  4. Step 4: Simplify right side
    88,211.70x = 10,960,446,087.63
  5. Step 5: Solve for x
    x = 10,960,446,087.63/88,211.70
  6. Step 6: Final answer
    x = 124,251.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.