Home / 215,864.42-323,834.07-66,101.18

Finding the Fourth Proportional to 215,864.42, 323,834.07 and 66,101.18

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Solution

The fourth proportional to 215,864.42, 323,834.07 and 66,101.18 is: 99,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,864.42 : 323,834.07 = 66,101.18 : x
  2. Step 2: Convert to fraction form
    215,864.42/323,834.07 = 66,101.18/x
  3. Step 3: Cross multiply
    215,864.42x = 323,834.07 × 66,101.18
  4. Step 4: Simplify right side
    215,864.42x = 21,405,814,151.20
  5. Step 5: Solve for x
    x = 21,405,814,151.20/215,864.42
  6. Step 6: Final answer
    x = 99,163.23

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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.