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Finding the Fourth Proportional to 131,034.30, 196,551.45 and 75,738.30

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Solution

The fourth proportional to 131,034.30, 196,551.45 and 75,738.30 is: 113,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,034.30 : 196,551.45 = 75,738.30 : x
  2. Step 2: Convert to fraction form
    131,034.30/196,551.45 = 75,738.30/x
  3. Step 3: Cross multiply
    131,034.30x = 196,551.45 × 75,738.30
  4. Step 4: Simplify right side
    131,034.30x = 14,886,472,685.54
  5. Step 5: Solve for x
    x = 14,886,472,685.54/131,034.30
  6. Step 6: Final answer
    x = 113,607.45

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Similar ratio
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1.5x scale

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.