Home / 185,331.28-255,758.43-100,449.76

Finding the Fourth Proportional to 185,331.28, 255,758.43 and 100,449.76

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Solution

The fourth proportional to 185,331.28, 255,758.43 and 100,449.76 is: 138,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,331.28 : 255,758.43 = 100,449.76 : x
  2. Step 2: Convert to fraction form
    185,331.28/255,758.43 = 100,449.76/x
  3. Step 3: Cross multiply
    185,331.28x = 255,758.43 × 100,449.76
  4. Step 4: Simplify right side
    185,331.28x = 25,690,872,911.48
  5. Step 5: Solve for x
    x = 25,690,872,911.48/185,331.28
  6. Step 6: Final answer
    x = 138,621.35

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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.