Home / 87,518.10-131,244.75-68,834.46

Finding the Fourth Proportional to 87,518.10, 131,244.75 and 68,834.46

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Solution

The fourth proportional to 87,518.10, 131,244.75 and 68,834.46 is: 103,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,518.10 : 131,244.75 = 68,834.46 : x
  2. Step 2: Convert to fraction form
    87,518.10/131,244.75 = 68,834.46/x
  3. Step 3: Cross multiply
    87,518.10x = 131,244.75 × 68,834.46
  4. Step 4: Simplify right side
    87,518.10x = 9,034,161,494.09
  5. Step 5: Solve for x
    x = 9,034,161,494.09/87,518.10
  6. Step 6: Final answer
    x = 103,226.21

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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.