Home / 185,984.17-278,935.25-91,120.31

Finding the Fourth Proportional to 185,984.17, 278,935.25 and 91,120.31

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Solution

The fourth proportional to 185,984.17, 278,935.25 and 91,120.31 is: 136,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,984.17 : 278,935.25 = 91,120.31 : x
  2. Step 2: Convert to fraction form
    185,984.17/278,935.25 = 91,120.31/x
  3. Step 3: Cross multiply
    185,984.17x = 278,935.25 × 91,120.31
  4. Step 4: Simplify right side
    185,984.17x = 25,416,665,645.66
  5. Step 5: Solve for x
    x = 25,416,665,645.66/185,984.17
  6. Step 6: Final answer
    x = 136,660.37

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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.