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Finding the Fourth Proportional to 112,017.20, 168,025.80 and 49,687.70

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Solution

The fourth proportional to 112,017.20, 168,025.80 and 49,687.70 is: 74,531.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,017.20 : 168,025.80 = 49,687.70 : x
  2. Step 2: Convert to fraction form
    112,017.20/168,025.80 = 49,687.70/x
  3. Step 3: Cross multiply
    112,017.20x = 168,025.80 × 49,687.70
  4. Step 4: Simplify right side
    112,017.20x = 8,348,815,542.66
  5. Step 5: Solve for x
    x = 8,348,815,542.66/112,017.20
  6. Step 6: Final answer
    x = 74,531.55

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1.5x scale

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.