Home / 144,020.08-198,747.66-80,357.86

Finding the Fourth Proportional to 144,020.08, 198,747.66 and 80,357.86

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Solution

The fourth proportional to 144,020.08, 198,747.66 and 80,357.86 is: 110,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,020.08 : 198,747.66 = 80,357.86 : x
  2. Step 2: Convert to fraction form
    144,020.08/198,747.66 = 80,357.86/x
  3. Step 3: Cross multiply
    144,020.08x = 198,747.66 × 80,357.86
  4. Step 4: Simplify right side
    144,020.08x = 15,970,936,637.61
  5. Step 5: Solve for x
    x = 15,970,936,637.61/144,020.08
  6. Step 6: Final answer
    x = 110,893.82

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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.