Home / 143,905.95-215,839.49-38,731.23

Finding the Fourth Proportional to 143,905.95, 215,839.49 and 38,731.23

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Solution

The fourth proportional to 143,905.95, 215,839.49 and 38,731.23 is: 58,091.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,905.95 : 215,839.49 = 38,731.23 : x
  2. Step 2: Convert to fraction form
    143,905.95/215,839.49 = 38,731.23/x
  3. Step 3: Cross multiply
    143,905.95x = 215,839.49 × 38,731.23
  4. Step 4: Simplify right side
    143,905.95x = 8,359,728,736.62
  5. Step 5: Solve for x
    x = 8,359,728,736.62/143,905.95
  6. Step 6: Final answer
    x = 58,091.61

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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.