Home / 143,568.67-198,126.66-79,045.42

Finding the Fourth Proportional to 143,568.67, 198,126.66 and 79,045.42

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Solution

The fourth proportional to 143,568.67, 198,126.66 and 79,045.42 is: 109,083.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,568.67 : 198,126.66 = 79,045.42 : x
  2. Step 2: Convert to fraction form
    143,568.67/198,126.66 = 79,045.42/x
  3. Step 3: Cross multiply
    143,568.67x = 198,126.66 × 79,045.42
  4. Step 4: Simplify right side
    143,568.67x = 15,661,005,052.90
  5. Step 5: Solve for x
    x = 15,661,005,052.90/143,568.67
  6. Step 6: Final answer
    x = 109,083.72

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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.