Home / 143,726.30-198,348.27-80,064.08

Finding the Fourth Proportional to 143,726.30, 198,348.27 and 80,064.08

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Solution

The fourth proportional to 143,726.30, 198,348.27 and 80,064.08 is: 110,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,726.30 : 198,348.27 = 80,064.08 : x
  2. Step 2: Convert to fraction form
    143,726.30/198,348.27 = 80,064.08/x
  3. Step 3: Cross multiply
    143,726.30x = 198,348.27 × 80,064.08
  4. Step 4: Simplify right side
    143,726.30x = 15,880,571,757.14
  5. Step 5: Solve for x
    x = 15,880,571,757.14/143,726.30
  6. Step 6: Final answer
    x = 110,491.76

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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.