Home / 127,474.62-191,211.84-38,727.78

Finding the Fourth Proportional to 127,474.62, 191,211.84 and 38,727.78

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Solution

The fourth proportional to 127,474.62, 191,211.84 and 38,727.78 is: 58,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,474.62 : 191,211.84 = 38,727.78 : x
  2. Step 2: Convert to fraction form
    127,474.62/191,211.84 = 38,727.78/x
  3. Step 3: Cross multiply
    127,474.62x = 191,211.84 × 38,727.78
  4. Step 4: Simplify right side
    127,474.62x = 7,405,210,072.92
  5. Step 5: Solve for x
    x = 7,405,210,072.92/127,474.62
  6. Step 6: Final answer
    x = 58,091.64

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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.