Home / 129,422.50-194,133.51-73,979.62

Finding the Fourth Proportional to 129,422.50, 194,133.51 and 73,979.62

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Solution

The fourth proportional to 129,422.50, 194,133.51 and 73,979.62 is: 110,969.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,422.50 : 194,133.51 = 73,979.62 : x
  2. Step 2: Convert to fraction form
    129,422.50/194,133.51 = 73,979.62/x
  3. Step 3: Cross multiply
    129,422.50x = 194,133.51 × 73,979.62
  4. Step 4: Simplify right side
    129,422.50x = 14,361,923,299.07
  5. Step 5: Solve for x
    x = 14,361,923,299.07/129,422.50
  6. Step 6: Final answer
    x = 110,969.29

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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.