Home / 129,499.36-194,275.46-54,619.41

Finding the Fourth Proportional to 129,499.36, 194,275.46 and 54,619.41

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Solution

The fourth proportional to 129,499.36, 194,275.46 and 54,619.41 is: 81,940.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,499.36 : 194,275.46 = 54,619.41 : x
  2. Step 2: Convert to fraction form
    129,499.36/194,275.46 = 54,619.41/x
  3. Step 3: Cross multiply
    129,499.36x = 194,275.46 × 54,619.41
  4. Step 4: Simplify right side
    129,499.36x = 10,611,211,867.76
  5. Step 5: Solve for x
    x = 10,611,211,867.76/129,499.36
  6. Step 6: Final answer
    x = 81,940.27

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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.