Home / 129,811.60-194,717.40-115,296.40

Finding the Fourth Proportional to 129,811.60, 194,717.40 and 115,296.40

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Solution

The fourth proportional to 129,811.60, 194,717.40 and 115,296.40 is: 172,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,811.60 : 194,717.40 = 115,296.40 : x
  2. Step 2: Convert to fraction form
    129,811.60/194,717.40 = 115,296.40/x
  3. Step 3: Cross multiply
    129,811.60x = 194,717.40 × 115,296.40
  4. Step 4: Simplify right side
    129,811.60x = 22,450,215,237.36
  5. Step 5: Solve for x
    x = 22,450,215,237.36/129,811.60
  6. Step 6: Final answer
    x = 172,944.60

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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.