Home / 127,384.30-191,076.90-38,638.54

Finding the Fourth Proportional to 127,384.30, 191,076.90 and 38,638.54

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Solution

The fourth proportional to 127,384.30, 191,076.90 and 38,638.54 is: 57,957.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,384.30 : 191,076.90 = 38,638.54 : x
  2. Step 2: Convert to fraction form
    127,384.30/191,076.90 = 38,638.54/x
  3. Step 3: Cross multiply
    127,384.30x = 191,076.90 × 38,638.54
  4. Step 4: Simplify right side
    127,384.30x = 7,382,932,443.73
  5. Step 5: Solve for x
    x = 7,382,932,443.73/127,384.30
  6. Step 6: Final answer
    x = 57,957.95

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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.