Home / 144,085.96-198,841.62-80,426.44

Finding the Fourth Proportional to 144,085.96, 198,841.62 and 80,426.44

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Solution

The fourth proportional to 144,085.96, 198,841.62 and 80,426.44 is: 110,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,085.96 : 198,841.62 = 80,426.44 : x
  2. Step 2: Convert to fraction form
    144,085.96/198,841.62 = 80,426.44/x
  3. Step 3: Cross multiply
    144,085.96x = 198,841.62 × 80,426.44
  4. Step 4: Simplify right side
    144,085.96x = 15,992,123,620.43
  5. Step 5: Solve for x
    x = 15,992,123,620.43/144,085.96
  6. Step 6: Final answer
    x = 110,990.16

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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.