Home / 129,581.01-194,367.87-70,789.01

Finding the Fourth Proportional to 129,581.01, 194,367.87 and 70,789.01

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Solution

The fourth proportional to 129,581.01, 194,367.87 and 70,789.01 is: 106,181.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,581.01 : 194,367.87 = 70,789.01 : x
  2. Step 2: Convert to fraction form
    129,581.01/194,367.87 = 70,789.01/x
  3. Step 3: Cross multiply
    129,581.01x = 194,367.87 × 70,789.01
  4. Step 4: Simplify right side
    129,581.01x = 13,759,108,121.27
  5. Step 5: Solve for x
    x = 13,759,108,121.27/129,581.01
  6. Step 6: Final answer
    x = 106,181.52

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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.