Home / 87,565.98-131,266.68-66,186

Finding the Fourth Proportional to 87,565.98, 131,266.68 and 66,186

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Solution

The fourth proportional to 87,565.98, 131,266.68 and 66,186 is: 99,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,565.98 : 131,266.68 = 66,186 : x
  2. Step 2: Convert to fraction form
    87,565.98/131,266.68 = 66,186/x
  3. Step 3: Cross multiply
    87,565.98x = 131,266.68 × 66,186
  4. Step 4: Simplify right side
    87,565.98x = 8,688,016,482.48
  5. Step 5: Solve for x
    x = 8,688,016,482.48/87,565.98
  6. Step 6: Final answer
    x = 99,216.80

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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.