Home / 129,604.38-194,406.57-31,108.38

Finding the Fourth Proportional to 129,604.38, 194,406.57 and 31,108.38

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Solution

The fourth proportional to 129,604.38, 194,406.57 and 31,108.38 is: 46,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,604.38 : 194,406.57 = 31,108.38 : x
  2. Step 2: Convert to fraction form
    129,604.38/194,406.57 = 31,108.38/x
  3. Step 3: Cross multiply
    129,604.38x = 194,406.57 × 31,108.38
  4. Step 4: Simplify right side
    129,604.38x = 6,047,672,326.48
  5. Step 5: Solve for x
    x = 6,047,672,326.48/129,604.38
  6. Step 6: Final answer
    x = 46,662.56

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1.5x scale

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.