Home / 143,757.77-198,387.06-79,229.35

Finding the Fourth Proportional to 143,757.77, 198,387.06 and 79,229.35

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Solution

The fourth proportional to 143,757.77, 198,387.06 and 79,229.35 is: 109,337.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,757.77 : 198,387.06 = 79,229.35 : x
  2. Step 2: Convert to fraction form
    143,757.77/198,387.06 = 79,229.35/x
  3. Step 3: Cross multiply
    143,757.77x = 198,387.06 × 79,229.35
  4. Step 4: Simplify right side
    143,757.77x = 15,718,077,316.24
  5. Step 5: Solve for x
    x = 15,718,077,316.24/143,757.77
  6. Step 6: Final answer
    x = 109,337.24

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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.