Home / 143,760.63-198,391.01-79,232.17

Finding the Fourth Proportional to 143,760.63, 198,391.01 and 79,232.17

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Solution

The fourth proportional to 143,760.63, 198,391.01 and 79,232.17 is: 109,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,760.63 : 198,391.01 = 79,232.17 : x
  2. Step 2: Convert to fraction form
    143,760.63/198,391.01 = 79,232.17/x
  3. Step 3: Cross multiply
    143,760.63x = 198,391.01 × 79,232.17
  4. Step 4: Simplify right side
    143,760.63x = 15,718,950,230.79
  5. Step 5: Solve for x
    x = 15,718,950,230.79/143,760.63
  6. Step 6: Final answer
    x = 109,341.13

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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.