Home / 136,031.10-204,046.65-121,515.90

Finding the Fourth Proportional to 136,031.10, 204,046.65 and 121,515.90

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Solution

The fourth proportional to 136,031.10, 204,046.65 and 121,515.90 is: 182,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,031.10 : 204,046.65 = 121,515.90 : x
  2. Step 2: Convert to fraction form
    136,031.10/204,046.65 = 121,515.90/x
  3. Step 3: Cross multiply
    136,031.10x = 204,046.65 × 121,515.90
  4. Step 4: Simplify right side
    136,031.10x = 24,794,912,316.74
  5. Step 5: Solve for x
    x = 24,794,912,316.74/136,031.10
  6. Step 6: Final answer
    x = 182,273.85

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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.