Home / 143,604.71-198,166.74-79,061.38

Finding the Fourth Proportional to 143,604.71, 198,166.74 and 79,061.38

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Solution

The fourth proportional to 143,604.71, 198,166.74 and 79,061.38 is: 109,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,604.71 : 198,166.74 = 79,061.38 : x
  2. Step 2: Convert to fraction form
    143,604.71/198,166.74 = 79,061.38/x
  3. Step 3: Cross multiply
    143,604.71x = 198,166.74 × 79,061.38
  4. Step 4: Simplify right side
    143,604.71x = 15,667,335,142.60
  5. Step 5: Solve for x
    x = 15,667,335,142.60/143,604.71
  6. Step 6: Final answer
    x = 109,100.43

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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.