Home / 126,877.60-175,098.18-72,445.84

Finding the Fourth Proportional to 126,877.60, 175,098.18 and 72,445.84

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Solution

The fourth proportional to 126,877.60, 175,098.18 and 72,445.84 is: 99,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,877.60 : 175,098.18 = 72,445.84 : x
  2. Step 2: Convert to fraction form
    126,877.60/175,098.18 = 72,445.84/x
  3. Step 3: Cross multiply
    126,877.60x = 175,098.18 × 72,445.84
  4. Step 4: Simplify right side
    126,877.60x = 12,685,134,732.57
  5. Step 5: Solve for x
    x = 12,685,134,732.57/126,877.60
  6. Step 6: Final answer
    x = 99,979.31

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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.