Home / 203,934.80-281,424.02-113,288.51

Finding the Fourth Proportional to 203,934.80, 281,424.02 and 113,288.51

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Solution

The fourth proportional to 203,934.80, 281,424.02 and 113,288.51 is: 156,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,934.80 : 281,424.02 = 113,288.51 : x
  2. Step 2: Convert to fraction form
    203,934.80/281,424.02 = 113,288.51/x
  3. Step 3: Cross multiply
    203,934.80x = 281,424.02 × 113,288.51
  4. Step 4: Simplify right side
    203,934.80x = 31,882,105,930.45
  5. Step 5: Solve for x
    x = 31,882,105,930.45/203,934.80
  6. Step 6: Final answer
    x = 156,334.80

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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.