Home / 134,067.74-185,015-73,639.78

Finding the Fourth Proportional to 134,067.74, 185,015 and 73,639.78

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Solution

The fourth proportional to 134,067.74, 185,015 and 73,639.78 is: 101,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,067.74 : 185,015 = 73,639.78 : x
  2. Step 2: Convert to fraction form
    134,067.74/185,015 = 73,639.78/x
  3. Step 3: Cross multiply
    134,067.74x = 185,015 × 73,639.78
  4. Step 4: Simplify right side
    134,067.74x = 13,624,463,896.70
  5. Step 5: Solve for x
    x = 13,624,463,896.70/134,067.74
  6. Step 6: Final answer
    x = 101,623.73

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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.