Home / 107,082.45-147,789.30-61,751.43

Finding the Fourth Proportional to 107,082.45, 147,789.30 and 61,751.43

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Solution

The fourth proportional to 107,082.45, 147,789.30 and 61,751.43 is: 85,225.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,082.45 : 147,789.30 = 61,751.43 : x
  2. Step 2: Convert to fraction form
    107,082.45/147,789.30 = 61,751.43/x
  3. Step 3: Cross multiply
    107,082.45x = 147,789.30 × 61,751.43
  4. Step 4: Simplify right side
    107,082.45x = 9,126,200,613.70
  5. Step 5: Solve for x
    x = 9,126,200,613.70/107,082.45
  6. Step 6: Final answer
    x = 85,225.92

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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.