Home / 143,186.36-197,585.62-82,760.92

Finding the Fourth Proportional to 143,186.36, 197,585.62 and 82,760.92

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Solution

The fourth proportional to 143,186.36, 197,585.62 and 82,760.92 is: 114,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,186.36 : 197,585.62 = 82,760.92 : x
  2. Step 2: Convert to fraction form
    143,186.36/197,585.62 = 82,760.92/x
  3. Step 3: Cross multiply
    143,186.36x = 197,585.62 × 82,760.92
  4. Step 4: Simplify right side
    143,186.36x = 16,352,367,689.97
  5. Step 5: Solve for x
    x = 16,352,367,689.97/143,186.36
  6. Step 6: Final answer
    x = 114,203.39

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Double scale
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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.