Home / 87,862.68-120,665.61-73,690.92

Finding the Fourth Proportional to 87,862.68, 120,665.61 and 73,690.92

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Solution

The fourth proportional to 87,862.68, 120,665.61 and 73,690.92 is: 101,202.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,862.68 : 120,665.61 = 73,690.92 : x
  2. Step 2: Convert to fraction form
    87,862.68/120,665.61 = 73,690.92/x
  3. Step 3: Cross multiply
    87,862.68x = 120,665.61 × 73,690.92
  4. Step 4: Simplify right side
    87,862.68x = 8,891,959,813.26
  5. Step 5: Solve for x
    x = 8,891,959,813.26/87,862.68
  6. Step 6: Final answer
    x = 101,202.92

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1.5x scale

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.