Home / 107,581.70-148,504.39-80,801.89

Finding the Fourth Proportional to 107,581.70, 148,504.39 and 80,801.89

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Solution

The fourth proportional to 107,581.70, 148,504.39 and 80,801.89 is: 111,537.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,581.70 : 148,504.39 = 80,801.89 : x
  2. Step 2: Convert to fraction form
    107,581.70/148,504.39 = 80,801.89/x
  3. Step 3: Cross multiply
    107,581.70x = 148,504.39 × 80,801.89
  4. Step 4: Simplify right side
    107,581.70x = 11,999,434,812.03
  5. Step 5: Solve for x
    x = 11,999,434,812.03/107,581.70
  6. Step 6: Final answer
    x = 111,537.88

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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.