Home / 154,021.39-231,053.96-47,414.21

Finding the Fourth Proportional to 154,021.39, 231,053.96 and 47,414.21

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Solution

The fourth proportional to 154,021.39, 231,053.96 and 47,414.21 is: 71,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,021.39 : 231,053.96 = 47,414.21 : x
  2. Step 2: Convert to fraction form
    154,021.39/231,053.96 = 47,414.21/x
  3. Step 3: Cross multiply
    154,021.39x = 231,053.96 × 47,414.21
  4. Step 4: Simplify right side
    154,021.39x = 10,955,239,944.04
  5. Step 5: Solve for x
    x = 10,955,239,944.04/154,021.39
  6. Step 6: Final answer
    x = 71,128.04

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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.