Home / 136,390.11-204,672.56-66,231.15

Finding the Fourth Proportional to 136,390.11, 204,672.56 and 66,231.15

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Solution

The fourth proportional to 136,390.11, 204,672.56 and 66,231.15 is: 99,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,390.11 : 204,672.56 = 66,231.15 : x
  2. Step 2: Convert to fraction form
    136,390.11/204,672.56 = 66,231.15/x
  3. Step 3: Cross multiply
    136,390.11x = 204,672.56 × 66,231.15
  4. Step 4: Simplify right side
    136,390.11x = 13,555,698,691.09
  5. Step 5: Solve for x
    x = 13,555,698,691.09/136,390.11
  6. Step 6: Final answer
    x = 99,389.16

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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.