Home / 144,265.86-198,761.04-100,616.72

Finding the Fourth Proportional to 144,265.86, 198,761.04 and 100,616.72

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Solution

The fourth proportional to 144,265.86, 198,761.04 and 100,616.72 is: 138,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,265.86 : 198,761.04 = 100,616.72 : x
  2. Step 2: Convert to fraction form
    144,265.86/198,761.04 = 100,616.72/x
  3. Step 3: Cross multiply
    144,265.86x = 198,761.04 × 100,616.72
  4. Step 4: Simplify right side
    144,265.86x = 19,998,682,914.78
  5. Step 5: Solve for x
    x = 19,998,682,914.78/144,265.86
  6. Step 6: Final answer
    x = 138,623.81

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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.