Home / 107,711.75-161,589.50-45,382.25

Finding the Fourth Proportional to 107,711.75, 161,589.50 and 45,382.25

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Solution

The fourth proportional to 107,711.75, 161,589.50 and 45,382.25 is: 68,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,711.75 : 161,589.50 = 45,382.25 : x
  2. Step 2: Convert to fraction form
    107,711.75/161,589.50 = 45,382.25/x
  3. Step 3: Cross multiply
    107,711.75x = 161,589.50 × 45,382.25
  4. Step 4: Simplify right side
    107,711.75x = 7,333,295,086.38
  5. Step 5: Solve for x
    x = 7,333,295,086.38/107,711.75
  6. Step 6: Final answer
    x = 68,082.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.