Home / 127,969.38-176,601.50-71,379.54

Finding the Fourth Proportional to 127,969.38, 176,601.50 and 71,379.54

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Solution

The fourth proportional to 127,969.38, 176,601.50 and 71,379.54 is: 98,505.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,969.38 : 176,601.50 = 71,379.54 : x
  2. Step 2: Convert to fraction form
    127,969.38/176,601.50 = 71,379.54/x
  3. Step 3: Cross multiply
    127,969.38x = 176,601.50 × 71,379.54
  4. Step 4: Simplify right side
    127,969.38x = 12,605,733,833.31
  5. Step 5: Solve for x
    x = 12,605,733,833.31/127,969.38
  6. Step 6: Final answer
    x = 98,505.86

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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.