Home / 111,765.30-154,198.35-63,362.04

Finding the Fourth Proportional to 111,765.30, 154,198.35 and 63,362.04

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Solution

The fourth proportional to 111,765.30, 154,198.35 and 63,362.04 is: 87,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,765.30 : 154,198.35 = 63,362.04 : x
  2. Step 2: Convert to fraction form
    111,765.30/154,198.35 = 63,362.04/x
  3. Step 3: Cross multiply
    111,765.30x = 154,198.35 × 63,362.04
  4. Step 4: Simplify right side
    111,765.30x = 9,770,322,020.63
  5. Step 5: Solve for x
    x = 9,770,322,020.63/111,765.30
  6. Step 6: Final answer
    x = 87,418.21

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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.