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Finding the Fourth Proportional to 144,019.53, 198,758.16 and 80,366.88

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Solution

The fourth proportional to 144,019.53, 198,758.16 and 80,366.88 is: 110,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,019.53 : 198,758.16 = 80,366.88 : x
  2. Step 2: Convert to fraction form
    144,019.53/198,758.16 = 80,366.88/x
  3. Step 3: Cross multiply
    144,019.53x = 198,758.16 × 80,366.88
  4. Step 4: Simplify right side
    144,019.53x = 15,973,573,193.74
  5. Step 5: Solve for x
    x = 15,973,573,193.74/144,019.53
  6. Step 6: Final answer
    x = 110,912.55

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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.