Home / 143,186.56-197,585.88-82,761.12

Finding the Fourth Proportional to 143,186.56, 197,585.88 and 82,761.12

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Solution

The fourth proportional to 143,186.56, 197,585.88 and 82,761.12 is: 114,203.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,186.56 : 197,585.88 = 82,761.12 : x
  2. Step 2: Convert to fraction form
    143,186.56/197,585.88 = 82,761.12/x
  3. Step 3: Cross multiply
    143,186.56x = 197,585.88 × 82,761.12
  4. Step 4: Simplify right side
    143,186.56x = 16,352,428,724.99
  5. Step 5: Solve for x
    x = 16,352,428,724.99/143,186.56
  6. Step 6: Final answer
    x = 114,203.66

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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.