Home / 143,391.86-215,093.27-53,456.95

Finding the Fourth Proportional to 143,391.86, 215,093.27 and 53,456.95

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Solution

The fourth proportional to 143,391.86, 215,093.27 and 53,456.95 is: 80,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,391.86 : 215,093.27 = 53,456.95 : x
  2. Step 2: Convert to fraction form
    143,391.86/215,093.27 = 53,456.95/x
  3. Step 3: Cross multiply
    143,391.86x = 215,093.27 × 53,456.95
  4. Step 4: Simplify right side
    143,391.86x = 11,498,230,179.73
  5. Step 5: Solve for x
    x = 11,498,230,179.73/143,391.86
  6. Step 6: Final answer
    x = 80,187.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.