Home / 111,974.55-154,544.99-64,243.68

Finding the Fourth Proportional to 111,974.55, 154,544.99 and 64,243.68

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Solution

The fourth proportional to 111,974.55, 154,544.99 and 64,243.68 is: 88,667.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,974.55 : 154,544.99 = 64,243.68 : x
  2. Step 2: Convert to fraction form
    111,974.55/154,544.99 = 64,243.68/x
  3. Step 3: Cross multiply
    111,974.55x = 154,544.99 × 64,243.68
  4. Step 4: Simplify right side
    111,974.55x = 9,928,538,883.16
  5. Step 5: Solve for x
    x = 9,928,538,883.16/111,974.55
  6. Step 6: Final answer
    x = 88,667.82

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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.