Home / 143,686.38-198,273.00-80,030.10

Finding the Fourth Proportional to 143,686.38, 198,273.00 and 80,030.10

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Solution

The fourth proportional to 143,686.38, 198,273.00 and 80,030.10 is: 110,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,686.38 : 198,273.00 = 80,030.10 : x
  2. Step 2: Convert to fraction form
    143,686.38/198,273.00 = 80,030.10/x
  3. Step 3: Cross multiply
    143,686.38x = 198,273.00 × 80,030.10
  4. Step 4: Simplify right side
    143,686.38x = 15,867,806,825.86
  5. Step 5: Solve for x
    x = 15,867,806,825.86/143,686.38
  6. Step 6: Final answer
    x = 110,433.62

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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.