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Finding the Fourth Proportional to 87,841.93, 131,894.13 and 86,529.73

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Solution

The fourth proportional to 87,841.93, 131,894.13 and 86,529.73 is: 129,923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,841.93 : 131,894.13 = 86,529.73 : x
  2. Step 2: Convert to fraction form
    87,841.93/131,894.13 = 86,529.73/x
  3. Step 3: Cross multiply
    87,841.93x = 131,894.13 × 86,529.73
  4. Step 4: Simplify right side
    87,841.93x = 11,412,763,457.48
  5. Step 5: Solve for x
    x = 11,412,763,457.48/87,841.93
  6. Step 6: Final answer
    x = 129,923.87

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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.