Home / 143,943.14-198,641.80-80,285.04

Finding the Fourth Proportional to 143,943.14, 198,641.80 and 80,285.04

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Solution

The fourth proportional to 143,943.14, 198,641.80 and 80,285.04 is: 110,793.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,943.14 : 198,641.80 = 80,285.04 : x
  2. Step 2: Convert to fraction form
    143,943.14/198,641.80 = 80,285.04/x
  3. Step 3: Cross multiply
    143,943.14x = 198,641.80 × 80,285.04
  4. Step 4: Simplify right side
    143,943.14x = 15,947,964,959.03
  5. Step 5: Solve for x
    x = 15,947,964,959.03/143,943.14
  6. Step 6: Final answer
    x = 110,793.50

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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.