Home / 103,947.30-143,463.42-68,240.88

Finding the Fourth Proportional to 103,947.30, 143,463.42 and 68,240.88

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Solution

The fourth proportional to 103,947.30, 143,463.42 and 68,240.88 is: 94,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,947.30 : 143,463.42 = 68,240.88 : x
  2. Step 2: Convert to fraction form
    103,947.30/143,463.42 = 68,240.88/x
  3. Step 3: Cross multiply
    103,947.30x = 143,463.42 × 68,240.88
  4. Step 4: Simplify right side
    103,947.30x = 9,790,070,028.61
  5. Step 5: Solve for x
    x = 9,790,070,028.61/103,947.30
  6. Step 6: Final answer
    x = 94,183.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.