Home / 251,695.20-347,339.42-138,517.96

Finding the Fourth Proportional to 251,695.20, 347,339.42 and 138,517.96

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Solution

The fourth proportional to 251,695.20, 347,339.42 and 138,517.96 is: 191,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,695.20 : 347,339.42 = 138,517.96 : x
  2. Step 2: Convert to fraction form
    251,695.20/347,339.42 = 138,517.96/x
  3. Step 3: Cross multiply
    251,695.20x = 347,339.42 × 138,517.96
  4. Step 4: Simplify right side
    251,695.20x = 48,112,747,885.98
  5. Step 5: Solve for x
    x = 48,112,747,885.98/251,695.20
  6. Step 6: Final answer
    x = 191,154.81

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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.