Home / 154,067.39-212,593.46-90,381.95

Finding the Fourth Proportional to 154,067.39, 212,593.46 and 90,381.95

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Solution

The fourth proportional to 154,067.39, 212,593.46 and 90,381.95 is: 124,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,067.39 : 212,593.46 = 90,381.95 : x
  2. Step 2: Convert to fraction form
    154,067.39/212,593.46 = 90,381.95/x
  3. Step 3: Cross multiply
    154,067.39x = 212,593.46 × 90,381.95
  4. Step 4: Simplify right side
    154,067.39x = 19,214,611,472.05
  5. Step 5: Solve for x
    x = 19,214,611,472.05/154,067.39
  6. Step 6: Final answer
    x = 124,715.63

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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.