Home / 131,133.45-196,729.10-77,873.85

Finding the Fourth Proportional to 131,133.45, 196,729.10 and 77,873.85

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Solution

The fourth proportional to 131,133.45, 196,729.10 and 77,873.85 is: 116,827.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,133.45 : 196,729.10 = 77,873.85 : x
  2. Step 2: Convert to fraction form
    131,133.45/196,729.10 = 77,873.85/x
  3. Step 3: Cross multiply
    131,133.45x = 196,729.10 × 77,873.85
  4. Step 4: Simplify right side
    131,133.45x = 15,320,052,034.67
  5. Step 5: Solve for x
    x = 15,320,052,034.67/131,133.45
  6. Step 6: Final answer
    x = 116,827.95

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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.