Home / 129,829.20-194,830.20-73,669.20

Finding the Fourth Proportional to 129,829.20, 194,830.20 and 73,669.20

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Solution

The fourth proportional to 129,829.20, 194,830.20 and 73,669.20 is: 110,552.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,829.20 : 194,830.20 = 73,669.20 : x
  2. Step 2: Convert to fraction form
    129,829.20/194,830.20 = 73,669.20/x
  3. Step 3: Cross multiply
    129,829.20x = 194,830.20 × 73,669.20
  4. Step 4: Simplify right side
    129,829.20x = 14,352,984,969.84
  5. Step 5: Solve for x
    x = 14,352,984,969.84/129,829.20
  6. Step 6: Final answer
    x = 110,552.83

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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.