Home / 131,216.40-196,855.85-42,469.92

Finding the Fourth Proportional to 131,216.40, 196,855.85 and 42,469.92

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Solution

The fourth proportional to 131,216.40, 196,855.85 and 42,469.92 is: 63,714.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,216.40 : 196,855.85 = 42,469.92 : x
  2. Step 2: Convert to fraction form
    131,216.40/196,855.85 = 42,469.92/x
  3. Step 3: Cross multiply
    131,216.40x = 196,855.85 × 42,469.92
  4. Step 4: Simplify right side
    131,216.40x = 8,360,451,988.68
  5. Step 5: Solve for x
    x = 8,360,451,988.68/131,216.40
  6. Step 6: Final answer
    x = 63,714.99

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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.