Home / 143,618.10-215,435.19-43,781.52

Finding the Fourth Proportional to 143,618.10, 215,435.19 and 43,781.52

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Solution

The fourth proportional to 143,618.10, 215,435.19 and 43,781.52 is: 65,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,618.10 : 215,435.19 = 43,781.52 : x
  2. Step 2: Convert to fraction form
    143,618.10/215,435.19 = 43,781.52/x
  3. Step 3: Cross multiply
    143,618.10x = 215,435.19 × 43,781.52
  4. Step 4: Simplify right side
    143,618.10x = 9,432,080,079.69
  5. Step 5: Solve for x
    x = 9,432,080,079.69/143,618.10
  6. Step 6: Final answer
    x = 65,674.73

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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.