Home / 131,290.20-196,935.30-61,176.60

Finding the Fourth Proportional to 131,290.20, 196,935.30 and 61,176.60

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Solution

The fourth proportional to 131,290.20, 196,935.30 and 61,176.60 is: 91,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,290.20 : 196,935.30 = 61,176.60 : x
  2. Step 2: Convert to fraction form
    131,290.20/196,935.30 = 61,176.60/x
  3. Step 3: Cross multiply
    131,290.20x = 196,935.30 × 61,176.60
  4. Step 4: Simplify right side
    131,290.20x = 12,047,832,073.98
  5. Step 5: Solve for x
    x = 12,047,832,073.98/131,290.20
  6. Step 6: Final answer
    x = 91,764.90

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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.