Home / 144,082.40-198,833.94-80,420.18

Finding the Fourth Proportional to 144,082.40, 198,833.94 and 80,420.18

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Solution

The fourth proportional to 144,082.40, 198,833.94 and 80,420.18 is: 110,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,082.40 : 198,833.94 = 80,420.18 : x
  2. Step 2: Convert to fraction form
    144,082.40/198,833.94 = 80,420.18/x
  3. Step 3: Cross multiply
    144,082.40x = 198,833.94 × 80,420.18
  4. Step 4: Simplify right side
    144,082.40x = 15,990,261,244.91
  5. Step 5: Solve for x
    x = 15,990,261,244.91/144,082.40
  6. Step 6: Final answer
    x = 110,979.98

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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.