Home / 129,865.35-194,804.10-41,125.80

Finding the Fourth Proportional to 129,865.35, 194,804.10 and 41,125.80

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Solution

The fourth proportional to 129,865.35, 194,804.10 and 41,125.80 is: 61,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865.35 : 194,804.10 = 41,125.80 : x
  2. Step 2: Convert to fraction form
    129,865.35/194,804.10 = 41,125.80/x
  3. Step 3: Cross multiply
    129,865.35x = 194,804.10 × 41,125.80
  4. Step 4: Simplify right side
    129,865.35x = 8,011,474,455.78
  5. Step 5: Solve for x
    x = 8,011,474,455.78/129,865.35
  6. Step 6: Final answer
    x = 61,690.62

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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.