Home / 143,198.26-197,613.60-79,541.98

Finding the Fourth Proportional to 143,198.26, 197,613.60 and 79,541.98

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Solution

The fourth proportional to 143,198.26, 197,613.60 and 79,541.98 is: 109,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,198.26 : 197,613.60 = 79,541.98 : x
  2. Step 2: Convert to fraction form
    143,198.26/197,613.60 = 79,541.98/x
  3. Step 3: Cross multiply
    143,198.26x = 197,613.60 × 79,541.98
  4. Step 4: Simplify right side
    143,198.26x = 15,718,577,018.93
  5. Step 5: Solve for x
    x = 15,718,577,018.93/143,198.26
  6. Step 6: Final answer
    x = 109,767.93

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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.