Home / 127,386.46-191,080.14-38,640.73

Finding the Fourth Proportional to 127,386.46, 191,080.14 and 38,640.73

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Solution

The fourth proportional to 127,386.46, 191,080.14 and 38,640.73 is: 57,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,386.46 : 191,080.14 = 38,640.73 : x
  2. Step 2: Convert to fraction form
    127,386.46/191,080.14 = 38,640.73/x
  3. Step 3: Cross multiply
    127,386.46x = 191,080.14 × 38,640.73
  4. Step 4: Simplify right side
    127,386.46x = 7,383,476,098.10
  5. Step 5: Solve for x
    x = 7,383,476,098.10/127,386.46
  6. Step 6: Final answer
    x = 57,961.23

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1.5x scale

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.