Home / 129,979.64-194,929.76-55,098.38

Finding the Fourth Proportional to 129,979.64, 194,929.76 and 55,098.38

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Solution

The fourth proportional to 129,979.64, 194,929.76 and 55,098.38 is: 82,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,979.64 : 194,929.76 = 55,098.38 : x
  2. Step 2: Convert to fraction form
    129,979.64/194,929.76 = 55,098.38/x
  3. Step 3: Cross multiply
    129,979.64x = 194,929.76 × 55,098.38
  4. Step 4: Simplify right side
    129,979.64x = 10,740,312,739.65
  5. Step 5: Solve for x
    x = 10,740,312,739.65/129,979.64
  6. Step 6: Final answer
    x = 82,630.73

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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.