Home / 129,814.16-194,721.28-54,914.88

Finding the Fourth Proportional to 129,814.16, 194,721.28 and 54,914.88

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Solution

The fourth proportional to 129,814.16, 194,721.28 and 54,914.88 is: 82,372.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,814.16 : 194,721.28 = 54,914.88 : x
  2. Step 2: Convert to fraction form
    129,814.16/194,721.28 = 54,914.88/x
  3. Step 3: Cross multiply
    129,814.16x = 194,721.28 × 54,914.88
  4. Step 4: Simplify right side
    129,814.16x = 10,693,095,724.65
  5. Step 5: Solve for x
    x = 10,693,095,724.65/129,814.16
  6. Step 6: Final answer
    x = 82,372.34

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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.