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Finding the Fourth Proportional to 129,908.97, 194,706.50 and 63,249.21

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Solution

The fourth proportional to 129,908.97, 194,706.50 and 63,249.21 is: 94,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,908.97 : 194,706.50 = 63,249.21 : x
  2. Step 2: Convert to fraction form
    129,908.97/194,706.50 = 63,249.21/x
  3. Step 3: Cross multiply
    129,908.97x = 194,706.50 × 63,249.21
  4. Step 4: Simplify right side
    129,908.97x = 12,315,031,990.62
  5. Step 5: Solve for x
    x = 12,315,031,990.62/129,908.97
  6. Step 6: Final answer
    x = 94,797.40

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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.