Home / 204,280.86-281,830.20-126,720.66

Finding the Fourth Proportional to 204,280.86, 281,830.20 and 126,720.66

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Solution

The fourth proportional to 204,280.86, 281,830.20 and 126,720.66 is: 174,826.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,280.86 : 281,830.20 = 126,720.66 : x
  2. Step 2: Convert to fraction form
    204,280.86/281,830.20 = 126,720.66/x
  3. Step 3: Cross multiply
    204,280.86x = 281,830.20 × 126,720.66
  4. Step 4: Simplify right side
    204,280.86x = 35,713,708,951.93
  5. Step 5: Solve for x
    x = 35,713,708,951.93/204,280.86
  6. Step 6: Final answer
    x = 174,826.51

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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.