Home / 154,928.70-213,843.51-91,286.46

Finding the Fourth Proportional to 154,928.70, 213,843.51 and 91,286.46

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Solution

The fourth proportional to 154,928.70, 213,843.51 and 91,286.46 is: 126,000.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,928.70 : 213,843.51 = 91,286.46 : x
  2. Step 2: Convert to fraction form
    154,928.70/213,843.51 = 91,286.46/x
  3. Step 3: Cross multiply
    154,928.70x = 213,843.51 × 91,286.46
  4. Step 4: Simplify right side
    154,928.70x = 19,521,017,021.87
  5. Step 5: Solve for x
    x = 19,521,017,021.87/154,928.70
  6. Step 6: Final answer
    x = 126,000.01

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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.