Home / 201,706.38-302,296.86-89,418.78

Finding the Fourth Proportional to 201,706.38, 302,296.86 and 89,418.78

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Solution

The fourth proportional to 201,706.38, 302,296.86 and 89,418.78 is: 134,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,706.38 : 302,296.86 = 89,418.78 : x
  2. Step 2: Convert to fraction form
    201,706.38/302,296.86 = 89,418.78/x
  3. Step 3: Cross multiply
    201,706.38x = 302,296.86 × 89,418.78
  4. Step 4: Simplify right side
    201,706.38x = 27,031,016,419.03
  5. Step 5: Solve for x
    x = 27,031,016,419.03/201,706.38
  6. Step 6: Final answer
    x = 134,011.71

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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.