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Finding the Fourth Proportional to 131,370.66, 179,978.46 and 126,450.62

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Solution

The fourth proportional to 131,370.66, 179,978.46 and 126,450.62 is: 173,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,370.66 : 179,978.46 = 126,450.62 : x
  2. Step 2: Convert to fraction form
    131,370.66/179,978.46 = 126,450.62/x
  3. Step 3: Cross multiply
    131,370.66x = 179,978.46 × 126,450.62
  4. Step 4: Simplify right side
    131,370.66x = 22,758,387,154.48
  5. Step 5: Solve for x
    x = 22,758,387,154.48/131,370.66
  6. Step 6: Final answer
    x = 173,237.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.