Home / 87,566.98-131,268.18-66,187

Finding the Fourth Proportional to 87,566.98, 131,268.18 and 66,187

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Solution

The fourth proportional to 87,566.98, 131,268.18 and 66,187 is: 99,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,566.98 : 131,268.18 = 66,187 : x
  2. Step 2: Convert to fraction form
    87,566.98/131,268.18 = 66,187/x
  3. Step 3: Cross multiply
    87,566.98x = 131,268.18 × 66,187
  4. Step 4: Simplify right side
    87,566.98x = 8,688,247,029.66
  5. Step 5: Solve for x
    x = 8,688,247,029.66/87,566.98
  6. Step 6: Final answer
    x = 99,218.30

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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.