Home / 129,869.70-194,764.05-51,008.10

Finding the Fourth Proportional to 129,869.70, 194,764.05 and 51,008.10

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Solution

The fourth proportional to 129,869.70, 194,764.05 and 51,008.10 is: 76,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,869.70 : 194,764.05 = 51,008.10 : x
  2. Step 2: Convert to fraction form
    129,869.70/194,764.05 = 51,008.10/x
  3. Step 3: Cross multiply
    129,869.70x = 194,764.05 × 51,008.10
  4. Step 4: Simplify right side
    129,869.70x = 9,934,544,138.81
  5. Step 5: Solve for x
    x = 9,934,544,138.81/129,869.70
  6. Step 6: Final answer
    x = 76,496.24

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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.