Home / 143,585.73-198,144.89-79,922.16

Finding the Fourth Proportional to 143,585.73, 198,144.89 and 79,922.16

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Solution

The fourth proportional to 143,585.73, 198,144.89 and 79,922.16 is: 110,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,585.73 : 198,144.89 = 79,922.16 : x
  2. Step 2: Convert to fraction form
    143,585.73/198,144.89 = 79,922.16/x
  3. Step 3: Cross multiply
    143,585.73x = 198,144.89 × 79,922.16
  4. Step 4: Simplify right side
    143,585.73x = 15,836,167,202.15
  5. Step 5: Solve for x
    x = 15,836,167,202.15/143,585.73
  6. Step 6: Final answer
    x = 110,290.68

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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.