Home / 131,456.20-197,184.30-89,465.80

Finding the Fourth Proportional to 131,456.20, 197,184.30 and 89,465.80

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Solution

The fourth proportional to 131,456.20, 197,184.30 and 89,465.80 is: 134,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,456.20 : 197,184.30 = 89,465.80 : x
  2. Step 2: Convert to fraction form
    131,456.20/197,184.30 = 89,465.80/x
  3. Step 3: Cross multiply
    131,456.20x = 197,184.30 × 89,465.80
  4. Step 4: Simplify right side
    131,456.20x = 17,641,251,146.94
  5. Step 5: Solve for x
    x = 17,641,251,146.94/131,456.20
  6. Step 6: Final answer
    x = 134,198.70

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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.