Home / 131,287.23-196,704.05-103,385.43

Finding the Fourth Proportional to 131,287.23, 196,704.05 and 103,385.43

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Solution

The fourth proportional to 131,287.23, 196,704.05 and 103,385.43 is: 154,899.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,287.23 : 196,704.05 = 103,385.43 : x
  2. Step 2: Convert to fraction form
    131,287.23/196,704.05 = 103,385.43/x
  3. Step 3: Cross multiply
    131,287.23x = 196,704.05 × 103,385.43
  4. Step 4: Simplify right side
    131,287.23x = 20,336,332,275.06
  5. Step 5: Solve for x
    x = 20,336,332,275.06/131,287.23
  6. Step 6: Final answer
    x = 154,899.55

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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.