Home / 143,562.49-215,374.92-43,720.12

Finding the Fourth Proportional to 143,562.49, 215,374.92 and 43,720.12

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Solution

The fourth proportional to 143,562.49, 215,374.92 and 43,720.12 is: 65,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,562.49 : 215,374.92 = 43,720.12 : x
  2. Step 2: Convert to fraction form
    143,562.49/215,374.92 = 43,720.12/x
  3. Step 3: Cross multiply
    143,562.49x = 215,374.92 × 43,720.12
  4. Step 4: Simplify right side
    143,562.49x = 9,416,217,821.55
  5. Step 5: Solve for x
    x = 9,416,217,821.55/143,562.49
  6. Step 6: Final answer
    x = 65,589.68

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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.