Home / 143,102.59-197,517.37-82,711.14

Finding the Fourth Proportional to 143,102.59, 197,517.37 and 82,711.14

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Solution

The fourth proportional to 143,102.59, 197,517.37 and 82,711.14 is: 114,162.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,102.59 : 197,517.37 = 82,711.14 : x
  2. Step 2: Convert to fraction form
    143,102.59/197,517.37 = 82,711.14/x
  3. Step 3: Cross multiply
    143,102.59x = 197,517.37 × 82,711.14
  4. Step 4: Simplify right side
    143,102.59x = 16,336,887,403.32
  5. Step 5: Solve for x
    x = 16,336,887,403.32/143,102.59
  6. Step 6: Final answer
    x = 114,162.07

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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.