Home / 129,810.80-194,767.40-50,911.60

Finding the Fourth Proportional to 129,810.80, 194,767.40 and 50,911.60

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Solution

The fourth proportional to 129,810.80, 194,767.40 and 50,911.60 is: 76,387.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,810.80 : 194,767.40 = 50,911.60 : x
  2. Step 2: Convert to fraction form
    129,810.80/194,767.40 = 50,911.60/x
  3. Step 3: Cross multiply
    129,810.80x = 194,767.40 × 50,911.60
  4. Step 4: Simplify right side
    129,810.80x = 9,915,919,961.84
  5. Step 5: Solve for x
    x = 9,915,919,961.84/129,810.80
  6. Step 6: Final answer
    x = 76,387.48

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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.