Home / 217,929.80-327,009.90-99,619.40

Finding the Fourth Proportional to 217,929.80, 327,009.90 and 99,619.40

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Solution

The fourth proportional to 217,929.80, 327,009.90 and 99,619.40 is: 149,481.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,929.80 : 327,009.90 = 99,619.40 : x
  2. Step 2: Convert to fraction form
    217,929.80/327,009.90 = 99,619.40/x
  3. Step 3: Cross multiply
    217,929.80x = 327,009.90 × 99,619.40
  4. Step 4: Simplify right side
    217,929.80x = 32,576,530,032.06
  5. Step 5: Solve for x
    x = 32,576,530,032.06/217,929.80
  6. Step 6: Final answer
    x = 149,481.76

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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.