Home / 129,670.64-194,582.48-54,785.92

Finding the Fourth Proportional to 129,670.64, 194,582.48 and 54,785.92

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Solution

The fourth proportional to 129,670.64, 194,582.48 and 54,785.92 is: 82,211.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,670.64 : 194,582.48 = 54,785.92 : x
  2. Step 2: Convert to fraction form
    129,670.64/194,582.48 = 54,785.92/x
  3. Step 3: Cross multiply
    129,670.64x = 194,582.48 × 54,785.92
  4. Step 4: Simplify right side
    129,670.64x = 10,660,380,182.68
  5. Step 5: Solve for x
    x = 10,660,380,182.68/129,670.64
  6. Step 6: Final answer
    x = 82,211.21

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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.