Home / 87,666.32-131,498.40-83,416.16

Finding the Fourth Proportional to 87,666.32, 131,498.40 and 83,416.16

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Solution

The fourth proportional to 87,666.32, 131,498.40 and 83,416.16 is: 125,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,666.32 : 131,498.40 = 83,416.16 : x
  2. Step 2: Convert to fraction form
    87,666.32/131,498.40 = 83,416.16/x
  3. Step 3: Cross multiply
    87,666.32x = 131,498.40 × 83,416.16
  4. Step 4: Simplify right side
    87,666.32x = 10,969,091,574.14
  5. Step 5: Solve for x
    x = 10,969,091,574.14/87,666.32
  6. Step 6: Final answer
    x = 125,123.21

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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.