Home / 129,425.94-194,195.40-45,246.51

Finding the Fourth Proportional to 129,425.94, 194,195.40 and 45,246.51

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Solution

The fourth proportional to 129,425.94, 194,195.40 and 45,246.51 is: 67,889.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,425.94 : 194,195.40 = 45,246.51 : x
  2. Step 2: Convert to fraction form
    129,425.94/194,195.40 = 45,246.51/x
  3. Step 3: Cross multiply
    129,425.94x = 194,195.40 × 45,246.51
  4. Step 4: Simplify right side
    129,425.94x = 8,786,664,108.05
  5. Step 5: Solve for x
    x = 8,786,664,108.05/129,425.94
  6. Step 6: Final answer
    x = 67,889.51

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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.