Home / 143,897.77-198,585.07-80,235.56

Finding the Fourth Proportional to 143,897.77, 198,585.07 and 80,235.56

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Solution

The fourth proportional to 143,897.77, 198,585.07 and 80,235.56 is: 110,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,897.77 : 198,585.07 = 80,235.56 : x
  2. Step 2: Convert to fraction form
    143,897.77/198,585.07 = 80,235.56/x
  3. Step 3: Cross multiply
    143,897.77x = 198,585.07 × 80,235.56
  4. Step 4: Simplify right side
    143,897.77x = 15,933,584,594.96
  5. Step 5: Solve for x
    x = 15,933,584,594.96/143,897.77
  6. Step 6: Final answer
    x = 110,728.51

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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.