Home / 126,877.57-175,011.85-81,614.56

Finding the Fourth Proportional to 126,877.57, 175,011.85 and 81,614.56

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Solution

The fourth proportional to 126,877.57, 175,011.85 and 81,614.56 is: 112,577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,877.57 : 175,011.85 = 81,614.56 : x
  2. Step 2: Convert to fraction form
    126,877.57/175,011.85 = 81,614.56/x
  3. Step 3: Cross multiply
    126,877.57x = 175,011.85 × 81,614.56
  4. Step 4: Simplify right side
    126,877.57x = 14,283,514,797.02
  5. Step 5: Solve for x
    x = 14,283,514,797.02/126,877.57
  6. Step 6: Final answer
    x = 112,577.15

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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.