Home / 127,705.72-176,143.26-108,452.56

Finding the Fourth Proportional to 127,705.72, 176,143.26 and 108,452.56

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Solution

The fourth proportional to 127,705.72, 176,143.26 and 108,452.56 is: 149,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,705.72 : 176,143.26 = 108,452.56 : x
  2. Step 2: Convert to fraction form
    127,705.72/176,143.26 = 108,452.56/x
  3. Step 3: Cross multiply
    127,705.72x = 176,143.26 × 108,452.56
  4. Step 4: Simplify right side
    127,705.72x = 19,103,187,473.75
  5. Step 5: Solve for x
    x = 19,103,187,473.75/127,705.72
  6. Step 6: Final answer
    x = 149,587.56

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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.