Home / 112,442.88-155,169.60-62,140.80

Finding the Fourth Proportional to 112,442.88, 155,169.60 and 62,140.80

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Solution

The fourth proportional to 112,442.88, 155,169.60 and 62,140.80 is: 85,753.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,442.88 : 155,169.60 = 62,140.80 : x
  2. Step 2: Convert to fraction form
    112,442.88/155,169.60 = 62,140.80/x
  3. Step 3: Cross multiply
    112,442.88x = 155,169.60 × 62,140.80
  4. Step 4: Simplify right side
    112,442.88x = 9,642,363,079.68
  5. Step 5: Solve for x
    x = 9,642,363,079.68/112,442.88
  6. Step 6: Final answer
    x = 85,753.43

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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.