Home / 185,729.31-278,320.80-109,749.73

Finding the Fourth Proportional to 185,729.31, 278,320.80 and 109,749.73

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Solution

The fourth proportional to 185,729.31, 278,320.80 and 109,749.73 is: 164,463.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,729.31 : 278,320.80 = 109,749.73 : x
  2. Step 2: Convert to fraction form
    185,729.31/278,320.80 = 109,749.73/x
  3. Step 3: Cross multiply
    185,729.31x = 278,320.80 × 109,749.73
  4. Step 4: Simplify right side
    185,729.31x = 30,545,632,653.38
  5. Step 5: Solve for x
    x = 30,545,632,653.38/185,729.31
  6. Step 6: Final answer
    x = 164,463.18

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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.