Home / 159,506.14-220,123.45-91,535.55

Finding the Fourth Proportional to 159,506.14, 220,123.45 and 91,535.55

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Solution

The fourth proportional to 159,506.14, 220,123.45 and 91,535.55 is: 126,321.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,506.14 : 220,123.45 = 91,535.55 : x
  2. Step 2: Convert to fraction form
    159,506.14/220,123.45 = 91,535.55/x
  3. Step 3: Cross multiply
    159,506.14x = 220,123.45 × 91,535.55
  4. Step 4: Simplify right side
    159,506.14x = 20,149,120,095.16
  5. Step 5: Solve for x
    x = 20,149,120,095.16/159,506.14
  6. Step 6: Final answer
    x = 126,321.91

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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.