Home / 129,374.33-194,050.37-78,760.22

Finding the Fourth Proportional to 129,374.33, 194,050.37 and 78,760.22

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Solution

The fourth proportional to 129,374.33, 194,050.37 and 78,760.22 is: 118,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,374.33 : 194,050.37 = 78,760.22 : x
  2. Step 2: Convert to fraction form
    129,374.33/194,050.37 = 78,760.22/x
  3. Step 3: Cross multiply
    129,374.33x = 194,050.37 × 78,760.22
  4. Step 4: Simplify right side
    129,374.33x = 15,283,449,832.28
  5. Step 5: Solve for x
    x = 15,283,449,832.28/129,374.33
  6. Step 6: Final answer
    x = 118,133.56

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1.5x scale

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.