Home / 128,963.70-193,516.16-50,081.04

Finding the Fourth Proportional to 128,963.70, 193,516.16 and 50,081.04

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Solution

The fourth proportional to 128,963.70, 193,516.16 and 50,081.04 is: 75,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,963.70 : 193,516.16 = 50,081.04 : x
  2. Step 2: Convert to fraction form
    128,963.70/193,516.16 = 50,081.04/x
  3. Step 3: Cross multiply
    128,963.70x = 193,516.16 × 50,081.04
  4. Step 4: Simplify right side
    128,963.70x = 9,691,490,299.20
  5. Step 5: Solve for x
    x = 9,691,490,299.20/128,963.70
  6. Step 6: Final answer
    x = 75,148.98

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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.