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Finding the Fourth Proportional to 144,039.84, 198,764.92 and 80,373.84

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Solution

The fourth proportional to 144,039.84, 198,764.92 and 80,373.84 is: 110,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,039.84 : 198,764.92 = 80,373.84 : x
  2. Step 2: Convert to fraction form
    144,039.84/198,764.92 = 80,373.84/x
  3. Step 3: Cross multiply
    144,039.84x = 198,764.92 × 80,373.84
  4. Step 4: Simplify right side
    144,039.84x = 15,975,499,877.69
  5. Step 5: Solve for x
    x = 15,975,499,877.69/144,039.84
  6. Step 6: Final answer
    x = 110,910.29

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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.