Home / 87,207.17-120,382.43-73,847.57

Finding the Fourth Proportional to 87,207.17, 120,382.43 and 73,847.57

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Solution

The fourth proportional to 87,207.17, 120,382.43 and 73,847.57 is: 101,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,207.17 : 120,382.43 = 73,847.57 : x
  2. Step 2: Convert to fraction form
    87,207.17/120,382.43 = 73,847.57/x
  3. Step 3: Cross multiply
    87,207.17x = 120,382.43 × 73,847.57
  4. Step 4: Simplify right side
    87,207.17x = 8,889,948,955.05
  5. Step 5: Solve for x
    x = 8,889,948,955.05/87,207.17
  6. Step 6: Final answer
    x = 101,940.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.