Home / 129,271.12-193,905.24-50,440.72

Finding the Fourth Proportional to 129,271.12, 193,905.24 and 50,440.72

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Solution

The fourth proportional to 129,271.12, 193,905.24 and 50,440.72 is: 75,660.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,271.12 : 193,905.24 = 50,440.72 : x
  2. Step 2: Convert to fraction form
    129,271.12/193,905.24 = 50,440.72/x
  3. Step 3: Cross multiply
    129,271.12x = 193,905.24 × 50,440.72
  4. Step 4: Simplify right side
    129,271.12x = 9,780,719,917.37
  5. Step 5: Solve for x
    x = 9,780,719,917.37/129,271.12
  6. Step 6: Final answer
    x = 75,660.52

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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.