Home / 131,836.52-181,934.70-71,406.92

Finding the Fourth Proportional to 131,836.52, 181,934.70 and 71,406.92

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Solution

The fourth proportional to 131,836.52, 181,934.70 and 71,406.92 is: 98,541.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,836.52 : 181,934.70 = 71,406.92 : x
  2. Step 2: Convert to fraction form
    131,836.52/181,934.70 = 71,406.92/x
  3. Step 3: Cross multiply
    131,836.52x = 181,934.70 × 71,406.92
  4. Step 4: Simplify right side
    131,836.52x = 12,991,396,568.12
  5. Step 5: Solve for x
    x = 12,991,396,568.12/131,836.52
  6. Step 6: Final answer
    x = 98,541.71

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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.