Home / 111,771.65-154,231.94-64,022.15

Finding the Fourth Proportional to 111,771.65, 154,231.94 and 64,022.15

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Solution

The fourth proportional to 111,771.65, 154,231.94 and 64,022.15 is: 88,343.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,771.65 : 154,231.94 = 64,022.15 : x
  2. Step 2: Convert to fraction form
    111,771.65/154,231.94 = 64,022.15/x
  3. Step 3: Cross multiply
    111,771.65x = 154,231.94 × 64,022.15
  4. Step 4: Simplify right side
    111,771.65x = 9,874,259,786.37
  5. Step 5: Solve for x
    x = 9,874,259,786.37/111,771.65
  6. Step 6: Final answer
    x = 88,343.16

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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.