Home / 143,951.12-198,652.56-80,288.96

Finding the Fourth Proportional to 143,951.12, 198,652.56 and 80,288.96

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Solution

The fourth proportional to 143,951.12, 198,652.56 and 80,288.96 is: 110,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,951.12 : 198,652.56 = 80,288.96 : x
  2. Step 2: Convert to fraction form
    143,951.12/198,652.56 = 80,288.96/x
  3. Step 3: Cross multiply
    143,951.12x = 198,652.56 × 80,288.96
  4. Step 4: Simplify right side
    143,951.12x = 15,949,607,443.74
  5. Step 5: Solve for x
    x = 15,949,607,443.74/143,951.12
  6. Step 6: Final answer
    x = 110,798.77

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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.