Home / 143,828.76-198,490.50-80,167.02

Finding the Fourth Proportional to 143,828.76, 198,490.50 and 80,167.02

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Solution

The fourth proportional to 143,828.76, 198,490.50 and 80,167.02 is: 110,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,828.76 : 198,490.50 = 80,167.02 : x
  2. Step 2: Convert to fraction form
    143,828.76/198,490.50 = 80,167.02/x
  3. Step 3: Cross multiply
    143,828.76x = 198,490.50 × 80,167.02
  4. Step 4: Simplify right side
    143,828.76x = 15,912,391,883.31
  5. Step 5: Solve for x
    x = 15,912,391,883.31/143,828.76
  6. Step 6: Final answer
    x = 110,634.28

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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.