Home / 201,623.14-302,435.56-81,682.42

Finding the Fourth Proportional to 201,623.14, 302,435.56 and 81,682.42

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Solution

The fourth proportional to 201,623.14, 302,435.56 and 81,682.42 is: 122,523.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,623.14 : 302,435.56 = 81,682.42 : x
  2. Step 2: Convert to fraction form
    201,623.14/302,435.56 = 81,682.42/x
  3. Step 3: Cross multiply
    201,623.14x = 302,435.56 × 81,682.42
  4. Step 4: Simplify right side
    201,623.14x = 24,703,668,020.42
  5. Step 5: Solve for x
    x = 24,703,668,020.42/201,623.14
  6. Step 6: Final answer
    x = 122,523.97

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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.