Home / 215,865.42-323,835.57-66,102.18

Finding the Fourth Proportional to 215,865.42, 323,835.57 and 66,102.18

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Solution

The fourth proportional to 215,865.42, 323,835.57 and 66,102.18 is: 99,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,865.42 : 323,835.57 = 66,102.18 : x
  2. Step 2: Convert to fraction form
    215,865.42/323,835.57 = 66,102.18/x
  3. Step 3: Cross multiply
    215,865.42x = 323,835.57 × 66,102.18
  4. Step 4: Simplify right side
    215,865.42x = 21,406,237,138.54
  5. Step 5: Solve for x
    x = 21,406,237,138.54/215,865.42
  6. Step 6: Final answer
    x = 99,164.73

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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.