Home / 129,608.20-194,432.77-45,366.31

Finding the Fourth Proportional to 129,608.20, 194,432.77 and 45,366.31

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Solution

The fourth proportional to 129,608.20, 194,432.77 and 45,366.31 is: 68,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,608.20 : 194,432.77 = 45,366.31 : x
  2. Step 2: Convert to fraction form
    129,608.20/194,432.77 = 45,366.31/x
  3. Step 3: Cross multiply
    129,608.20x = 194,432.77 × 45,366.31
  4. Step 4: Simplify right side
    129,608.20x = 8,820,697,617.73
  5. Step 5: Solve for x
    x = 8,820,697,617.73/129,608.20
  6. Step 6: Final answer
    x = 68,056.63

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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.