Home / 129,535.38-194,310.01-40,795.80

Finding the Fourth Proportional to 129,535.38, 194,310.01 and 40,795.80

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Solution

The fourth proportional to 129,535.38, 194,310.01 and 40,795.80 is: 61,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,535.38 : 194,310.01 = 40,795.80 : x
  2. Step 2: Convert to fraction form
    129,535.38/194,310.01 = 40,795.80/x
  3. Step 3: Cross multiply
    129,535.38x = 194,310.01 × 40,795.80
  4. Step 4: Simplify right side
    129,535.38x = 7,927,031,130.43
  5. Step 5: Solve for x
    x = 7,927,031,130.43/129,535.38
  6. Step 6: Final answer
    x = 61,195.88

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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.