Home / 143,215.80-197,474.73-91,463.18

Finding the Fourth Proportional to 143,215.80, 197,474.73 and 91,463.18

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Solution

The fourth proportional to 143,215.80, 197,474.73 and 91,463.18 is: 126,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,215.80 : 197,474.73 = 91,463.18 : x
  2. Step 2: Convert to fraction form
    143,215.80/197,474.73 = 91,463.18/x
  3. Step 3: Cross multiply
    143,215.80x = 197,474.73 × 91,463.18
  4. Step 4: Simplify right side
    143,215.80x = 18,061,665,445.08
  5. Step 5: Solve for x
    x = 18,061,665,445.08/143,215.80
  6. Step 6: Final answer
    x = 126,115.04

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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.