Home / 143,646.16-198,229.85-79,114.17

Finding the Fourth Proportional to 143,646.16, 198,229.85 and 79,114.17

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Solution

The fourth proportional to 143,646.16, 198,229.85 and 79,114.17 is: 109,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,646.16 : 198,229.85 = 79,114.17 : x
  2. Step 2: Convert to fraction form
    143,646.16/198,229.85 = 79,114.17/x
  3. Step 3: Cross multiply
    143,646.16x = 198,229.85 × 79,114.17
  4. Step 4: Simplify right side
    143,646.16x = 15,682,789,581.40
  5. Step 5: Solve for x
    x = 15,682,789,581.40/143,646.16
  6. Step 6: Final answer
    x = 109,176.53

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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.