Home / 179,531.76-247,662.72-137,016.48

Finding the Fourth Proportional to 179,531.76, 247,662.72 and 137,016.48

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Solution

The fourth proportional to 179,531.76, 247,662.72 and 137,016.48 is: 189,013.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,531.76 : 247,662.72 = 137,016.48 : x
  2. Step 2: Convert to fraction form
    179,531.76/247,662.72 = 137,016.48/x
  3. Step 3: Cross multiply
    179,531.76x = 247,662.72 × 137,016.48
  4. Step 4: Simplify right side
    179,531.76x = 33,933,874,121.63
  5. Step 5: Solve for x
    x = 33,933,874,121.63/179,531.76
  6. Step 6: Final answer
    x = 189,013.21

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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.