Home / 131,000.22-196,516.92-42,251.76

Finding the Fourth Proportional to 131,000.22, 196,516.92 and 42,251.76

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Solution

The fourth proportional to 131,000.22, 196,516.92 and 42,251.76 is: 63,382.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,000.22 : 196,516.92 = 42,251.76 : x
  2. Step 2: Convert to fraction form
    131,000.22/196,516.92 = 42,251.76/x
  3. Step 3: Cross multiply
    131,000.22x = 196,516.92 × 42,251.76
  4. Step 4: Simplify right side
    131,000.22x = 8,303,185,739.78
  5. Step 5: Solve for x
    x = 8,303,185,739.78/131,000.22
  6. Step 6: Final answer
    x = 63,382.99

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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.