Home / 144,134.90-198,902.01-80,471.33

Finding the Fourth Proportional to 144,134.90, 198,902.01 and 80,471.33

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Solution

The fourth proportional to 144,134.90, 198,902.01 and 80,471.33 is: 111,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,134.90 : 198,902.01 = 80,471.33 : x
  2. Step 2: Convert to fraction form
    144,134.90/198,902.01 = 80,471.33/x
  3. Step 3: Cross multiply
    144,134.90x = 198,902.01 × 80,471.33
  4. Step 4: Simplify right side
    144,134.90x = 16,005,908,289.86
  5. Step 5: Solve for x
    x = 16,005,908,289.86/144,134.90
  6. Step 6: Final answer
    x = 111,048.11

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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.