Home / 129,727.92-194,640.48-45,494.40

Finding the Fourth Proportional to 129,727.92, 194,640.48 and 45,494.40

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Solution

The fourth proportional to 129,727.92, 194,640.48 and 45,494.40 is: 68,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,727.92 : 194,640.48 = 45,494.40 : x
  2. Step 2: Convert to fraction form
    129,727.92/194,640.48 = 45,494.40/x
  3. Step 3: Cross multiply
    129,727.92x = 194,640.48 × 45,494.40
  4. Step 4: Simplify right side
    129,727.92x = 8,855,051,853.31
  5. Step 5: Solve for x
    x = 8,855,051,853.31/129,727.92
  6. Step 6: Final answer
    x = 68,258.64

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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.