Home / 111,945.38-154,472.88-63,531.89

Finding the Fourth Proportional to 111,945.38, 154,472.88 and 63,531.89

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Solution

The fourth proportional to 111,945.38, 154,472.88 and 63,531.89 is: 87,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,945.38 : 154,472.88 = 63,531.89 : x
  2. Step 2: Convert to fraction form
    111,945.38/154,472.88 = 63,531.89/x
  3. Step 3: Cross multiply
    111,945.38x = 154,472.88 × 63,531.89
  4. Step 4: Simplify right side
    111,945.38x = 9,813,954,020.14
  5. Step 5: Solve for x
    x = 9,813,954,020.14/111,945.38
  6. Step 6: Final answer
    x = 87,667.34

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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.