Home / 131,378.41-179,989.09-126,458.38

Finding the Fourth Proportional to 131,378.41, 179,989.09 and 126,458.38

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Solution

The fourth proportional to 131,378.41, 179,989.09 and 126,458.38 is: 173,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,378.41 : 179,989.09 = 126,458.38 : x
  2. Step 2: Convert to fraction form
    131,378.41/179,989.09 = 126,458.38/x
  3. Step 3: Cross multiply
    131,378.41x = 179,989.09 × 126,458.38
  4. Step 4: Simplify right side
    131,378.41x = 22,761,128,739.07
  5. Step 5: Solve for x
    x = 22,761,128,739.07/131,378.41
  6. Step 6: Final answer
    x = 173,248.62

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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.