Home / 143,599.28-198,162.36-79,934.96

Finding the Fourth Proportional to 143,599.28, 198,162.36 and 79,934.96

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Solution

The fourth proportional to 143,599.28, 198,162.36 and 79,934.96 is: 110,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,599.28 : 198,162.36 = 79,934.96 : x
  2. Step 2: Convert to fraction form
    143,599.28/198,162.36 = 79,934.96/x
  3. Step 3: Cross multiply
    143,599.28x = 198,162.36 × 79,934.96
  4. Step 4: Simplify right side
    143,599.28x = 15,840,100,320.11
  5. Step 5: Solve for x
    x = 15,840,100,320.11/143,599.28
  6. Step 6: Final answer
    x = 110,307.66

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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.