Home / 136,021.30-204,051.15-42,517.30

Finding the Fourth Proportional to 136,021.30, 204,051.15 and 42,517.30

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Solution

The fourth proportional to 136,021.30, 204,051.15 and 42,517.30 is: 63,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,021.30 : 204,051.15 = 42,517.30 : x
  2. Step 2: Convert to fraction form
    136,021.30/204,051.15 = 42,517.30/x
  3. Step 3: Cross multiply
    136,021.30x = 204,051.15 × 42,517.30
  4. Step 4: Simplify right side
    136,021.30x = 8,675,703,959.90
  5. Step 5: Solve for x
    x = 8,675,703,959.90/136,021.30
  6. Step 6: Final answer
    x = 63,781.95

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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.