Home / 129,956.20-194,837.10-70,858.60

Finding the Fourth Proportional to 129,956.20, 194,837.10 and 70,858.60

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Solution

The fourth proportional to 129,956.20, 194,837.10 and 70,858.60 is: 106,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,956.20 : 194,837.10 = 70,858.60 : x
  2. Step 2: Convert to fraction form
    129,956.20/194,837.10 = 70,858.60/x
  3. Step 3: Cross multiply
    129,956.20x = 194,837.10 × 70,858.60
  4. Step 4: Simplify right side
    129,956.20x = 13,805,884,134.06
  5. Step 5: Solve for x
    x = 13,805,884,134.06/129,956.20
  6. Step 6: Final answer
    x = 106,234.90

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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.