Home / 87,045.26-119,340.15-85,470.62

Finding the Fourth Proportional to 87,045.26, 119,340.15 and 85,470.62

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Solution

The fourth proportional to 87,045.26, 119,340.15 and 85,470.62 is: 117,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,045.26 : 119,340.15 = 85,470.62 : x
  2. Step 2: Convert to fraction form
    87,045.26/119,340.15 = 85,470.62/x
  3. Step 3: Cross multiply
    87,045.26x = 119,340.15 × 85,470.62
  4. Step 4: Simplify right side
    87,045.26x = 10,200,076,014.69
  5. Step 5: Solve for x
    x = 10,200,076,014.69/87,045.26
  6. Step 6: Final answer
    x = 117,181.30

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.