Home / 194,128.92-291,020.10-75,772.68

Finding the Fourth Proportional to 194,128.92, 291,020.10 and 75,772.68

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Solution

The fourth proportional to 194,128.92, 291,020.10 and 75,772.68 is: 113,591.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,128.92 : 291,020.10 = 75,772.68 : x
  2. Step 2: Convert to fraction form
    194,128.92/291,020.10 = 75,772.68/x
  3. Step 3: Cross multiply
    194,128.92x = 291,020.10 × 75,772.68
  4. Step 4: Simplify right side
    194,128.92x = 22,051,372,910.87
  5. Step 5: Solve for x
    x = 22,051,372,910.87/194,128.92
  6. Step 6: Final answer
    x = 113,591.39

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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.