Home / 127,384.12-191,103.96-38,644.54

Finding the Fourth Proportional to 127,384.12, 191,103.96 and 38,644.54

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Solution

The fourth proportional to 127,384.12, 191,103.96 and 38,644.54 is: 57,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,384.12 : 191,103.96 = 38,644.54 : x
  2. Step 2: Convert to fraction form
    127,384.12/191,103.96 = 38,644.54/x
  3. Step 3: Cross multiply
    127,384.12x = 191,103.96 × 38,644.54
  4. Step 4: Simplify right side
    127,384.12x = 7,385,124,626.38
  5. Step 5: Solve for x
    x = 7,385,124,626.38/127,384.12
  6. Step 6: Final answer
    x = 57,975.24

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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.