Home / 177,147.12-244,531.28-129,776.72

Finding the Fourth Proportional to 177,147.12, 244,531.28 and 129,776.72

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Solution

The fourth proportional to 177,147.12, 244,531.28 and 129,776.72 is: 179,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,147.12 : 244,531.28 = 129,776.72 : x
  2. Step 2: Convert to fraction form
    177,147.12/244,531.28 = 129,776.72/x
  3. Step 3: Cross multiply
    177,147.12x = 244,531.28 × 129,776.72
  4. Step 4: Simplify right side
    177,147.12x = 31,734,467,455.80
  5. Step 5: Solve for x
    x = 31,734,467,455.80/177,147.12
  6. Step 6: Final answer
    x = 179,141.88

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1.5x scale

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.