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Finding the Fourth Proportional to 144,117.96, 198,879.48 and 80,461.68

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Solution

The fourth proportional to 144,117.96, 198,879.48 and 80,461.68 is: 111,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,117.96 : 198,879.48 = 80,461.68 : x
  2. Step 2: Convert to fraction form
    144,117.96/198,879.48 = 80,461.68/x
  3. Step 3: Cross multiply
    144,117.96x = 198,879.48 × 80,461.68
  4. Step 4: Simplify right side
    144,117.96x = 16,002,177,078.33
  5. Step 5: Solve for x
    x = 16,002,177,078.33/144,117.96
  6. Step 6: Final answer
    x = 111,035.27

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1.5x scale

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.