Home / 131,112.30-196,668.45-74,930.70

Finding the Fourth Proportional to 131,112.30, 196,668.45 and 74,930.70

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Solution

The fourth proportional to 131,112.30, 196,668.45 and 74,930.70 is: 112,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,112.30 : 196,668.45 = 74,930.70 : x
  2. Step 2: Convert to fraction form
    131,112.30/196,668.45 = 74,930.70/x
  3. Step 3: Cross multiply
    131,112.30x = 196,668.45 × 74,930.70
  4. Step 4: Simplify right side
    131,112.30x = 14,736,504,626.42
  5. Step 5: Solve for x
    x = 14,736,504,626.42/131,112.30
  6. Step 6: Final answer
    x = 112,396.05

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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.