Home / 129,373.33-194,048.87-78,759.22

Finding the Fourth Proportional to 129,373.33, 194,048.87 and 78,759.22

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Solution

The fourth proportional to 129,373.33, 194,048.87 and 78,759.22 is: 118,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,373.33 : 194,048.87 = 78,759.22 : x
  2. Step 2: Convert to fraction form
    129,373.33/194,048.87 = 78,759.22/x
  3. Step 3: Cross multiply
    129,373.33x = 194,048.87 × 78,759.22
  4. Step 4: Simplify right side
    129,373.33x = 15,283,137,453.31
  5. Step 5: Solve for x
    x = 15,283,137,453.31/129,373.33
  6. Step 6: Final answer
    x = 118,132.06

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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.