Home / 129,470.40-194,254.20-50,641.20

Finding the Fourth Proportional to 129,470.40, 194,254.20 and 50,641.20

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Solution

The fourth proportional to 129,470.40, 194,254.20 and 50,641.20 is: 75,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,470.40 : 194,254.20 = 50,641.20 : x
  2. Step 2: Convert to fraction form
    129,470.40/194,254.20 = 50,641.20/x
  3. Step 3: Cross multiply
    129,470.40x = 194,254.20 × 50,641.20
  4. Step 4: Simplify right side
    129,470.40x = 9,837,265,793.04
  5. Step 5: Solve for x
    x = 9,837,265,793.04/129,470.40
  6. Step 6: Final answer
    x = 75,980.81

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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.