Home / 129,890.40-194,835.60-110,207.40

Finding the Fourth Proportional to 129,890.40, 194,835.60 and 110,207.40

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Solution

The fourth proportional to 129,890.40, 194,835.60 and 110,207.40 is: 165,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,890.40 : 194,835.60 = 110,207.40 : x
  2. Step 2: Convert to fraction form
    129,890.40/194,835.60 = 110,207.40/x
  3. Step 3: Cross multiply
    129,890.40x = 194,835.60 × 110,207.40
  4. Step 4: Simplify right side
    129,890.40x = 21,472,324,903.44
  5. Step 5: Solve for x
    x = 21,472,324,903.44/129,890.40
  6. Step 6: Final answer
    x = 165,311.10

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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.