Home / 149,516.38-206,330.97-81,533.14

Finding the Fourth Proportional to 149,516.38, 206,330.97 and 81,533.14

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Solution

The fourth proportional to 149,516.38, 206,330.97 and 81,533.14 is: 112,514.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,516.38 : 206,330.97 = 81,533.14 : x
  2. Step 2: Convert to fraction form
    149,516.38/206,330.97 = 81,533.14/x
  3. Step 3: Cross multiply
    149,516.38x = 206,330.97 × 81,533.14
  4. Step 4: Simplify right side
    149,516.38x = 16,822,811,863.35
  5. Step 5: Solve for x
    x = 16,822,811,863.35/149,516.38
  6. Step 6: Final answer
    x = 112,514.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.