Home / 143,510.38-215,282.85-47,450.86

Finding the Fourth Proportional to 143,510.38, 215,282.85 and 47,450.86

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Solution

The fourth proportional to 143,510.38, 215,282.85 and 47,450.86 is: 71,182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,510.38 : 215,282.85 = 47,450.86 : x
  2. Step 2: Convert to fraction form
    143,510.38/215,282.85 = 47,450.86/x
  3. Step 3: Cross multiply
    143,510.38x = 215,282.85 × 47,450.86
  4. Step 4: Simplify right side
    143,510.38x = 10,215,356,375.75
  5. Step 5: Solve for x
    x = 10,215,356,375.75/143,510.38
  6. Step 6: Final answer
    x = 71,182.00

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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.