Home / 143,198.25-197,613.60-79,541.97

Finding the Fourth Proportional to 143,198.25, 197,613.60 and 79,541.97

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Solution

The fourth proportional to 143,198.25, 197,613.60 and 79,541.97 is: 109,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,198.25 : 197,613.60 = 79,541.97 : x
  2. Step 2: Convert to fraction form
    143,198.25/197,613.60 = 79,541.97/x
  3. Step 3: Cross multiply
    143,198.25x = 197,613.60 × 79,541.97
  4. Step 4: Simplify right side
    143,198.25x = 15,718,575,042.79
  5. Step 5: Solve for x
    x = 15,718,575,042.79/143,198.25
  6. Step 6: Final answer
    x = 109,767.93

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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.