Home / 143,474.27-215,219.16-43,626.78

Finding the Fourth Proportional to 143,474.27, 215,219.16 and 43,626.78

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Solution

The fourth proportional to 143,474.27, 215,219.16 and 43,626.78 is: 65,442.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,474.27 : 215,219.16 = 43,626.78 : x
  2. Step 2: Convert to fraction form
    143,474.27/215,219.16 = 43,626.78/x
  3. Step 3: Cross multiply
    143,474.27x = 215,219.16 × 43,626.78
  4. Step 4: Simplify right side
    143,474.27x = 9,389,318,945.10
  5. Step 5: Solve for x
    x = 9,389,318,945.10/143,474.27
  6. Step 6: Final answer
    x = 65,442.53

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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.