Home / 129,616.75-194,425.13-31,120.75

Finding the Fourth Proportional to 129,616.75, 194,425.13 and 31,120.75

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Solution

The fourth proportional to 129,616.75, 194,425.13 and 31,120.75 is: 46,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,616.75 : 194,425.13 = 31,120.75 : x
  2. Step 2: Convert to fraction form
    129,616.75/194,425.13 = 31,120.75/x
  3. Step 3: Cross multiply
    129,616.75x = 194,425.13 × 31,120.75
  4. Step 4: Simplify right side
    129,616.75x = 6,050,655,864.45
  5. Step 5: Solve for x
    x = 6,050,655,864.45/129,616.75
  6. Step 6: Final answer
    x = 46,681.13

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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.