Home / 143,686.50-198,273.17-80,030.22

Finding the Fourth Proportional to 143,686.50, 198,273.17 and 80,030.22

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Solution

The fourth proportional to 143,686.50, 198,273.17 and 80,030.22 is: 110,433.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,686.50 : 198,273.17 = 80,030.22 : x
  2. Step 2: Convert to fraction form
    143,686.50/198,273.17 = 80,030.22/x
  3. Step 3: Cross multiply
    143,686.50x = 198,273.17 × 80,030.22
  4. Step 4: Simplify right side
    143,686.50x = 15,867,845,415.20
  5. Step 5: Solve for x
    x = 15,867,845,415.20/143,686.50
  6. Step 6: Final answer
    x = 110,433.79

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1.5x scale

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.