Home / 143,475.90-215,219.31-73,273.20

Finding the Fourth Proportional to 143,475.90, 215,219.31 and 73,273.20

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Solution

The fourth proportional to 143,475.90, 215,219.31 and 73,273.20 is: 109,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,475.90 : 215,219.31 = 73,273.20 : x
  2. Step 2: Convert to fraction form
    143,475.90/215,219.31 = 73,273.20/x
  3. Step 3: Cross multiply
    143,475.90x = 215,219.31 × 73,273.20
  4. Step 4: Simplify right side
    143,475.90x = 15,769,807,545.49
  5. Step 5: Solve for x
    x = 15,769,807,545.49/143,475.90
  6. Step 6: Final answer
    x = 109,912.59

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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.