Home / 181,085.20-249,885.76-100,508.88

Finding the Fourth Proportional to 181,085.20, 249,885.76 and 100,508.88

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Solution

The fourth proportional to 181,085.20, 249,885.76 and 100,508.88 is: 138,695.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,085.20 : 249,885.76 = 100,508.88 : x
  2. Step 2: Convert to fraction form
    181,085.20/249,885.76 = 100,508.88/x
  3. Step 3: Cross multiply
    181,085.20x = 249,885.76 × 100,508.88
  4. Step 4: Simplify right side
    181,085.20x = 25,115,737,865.55
  5. Step 5: Solve for x
    x = 25,115,737,865.55/181,085.20
  6. Step 6: Final answer
    x = 138,695.70

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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.