Home / 112,524.88-155,143.20-72,167.44

Finding the Fourth Proportional to 112,524.88, 155,143.20 and 72,167.44

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Solution

The fourth proportional to 112,524.88, 155,143.20 and 72,167.44 is: 99,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,524.88 : 155,143.20 = 72,167.44 : x
  2. Step 2: Convert to fraction form
    112,524.88/155,143.20 = 72,167.44/x
  3. Step 3: Cross multiply
    112,524.88x = 155,143.20 × 72,167.44
  4. Step 4: Simplify right side
    112,524.88x = 11,196,287,577.41
  5. Step 5: Solve for x
    x = 11,196,287,577.41/112,524.88
  6. Step 6: Final answer
    x = 99,500.55

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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.