Home / 129,890.16-194,855.67-55,010.79

Finding the Fourth Proportional to 129,890.16, 194,855.67 and 55,010.79

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Solution

The fourth proportional to 129,890.16, 194,855.67 and 55,010.79 is: 82,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,890.16 : 194,855.67 = 55,010.79 : x
  2. Step 2: Convert to fraction form
    129,890.16/194,855.67 = 55,010.79/x
  3. Step 3: Cross multiply
    129,890.16x = 194,855.67 × 55,010.79
  4. Step 4: Simplify right side
    129,890.16x = 10,719,164,342.68
  5. Step 5: Solve for x
    x = 10,719,164,342.68/129,890.16
  6. Step 6: Final answer
    x = 82,524.84

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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.