Home / 136,148.40-204,195.60-129,397.20

Finding the Fourth Proportional to 136,148.40, 204,195.60 and 129,397.20

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Solution

The fourth proportional to 136,148.40, 204,195.60 and 129,397.20 is: 194,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,148.40 : 204,195.60 = 129,397.20 : x
  2. Step 2: Convert to fraction form
    136,148.40/204,195.60 = 129,397.20/x
  3. Step 3: Cross multiply
    136,148.40x = 204,195.60 × 129,397.20
  4. Step 4: Simplify right side
    136,148.40x = 26,422,338,892.32
  5. Step 5: Solve for x
    x = 26,422,338,892.32/136,148.40
  6. Step 6: Final answer
    x = 194,070.14

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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.