Home / 136,982.72-205,515.60-97,078.85

Finding the Fourth Proportional to 136,982.72, 205,515.60 and 97,078.85

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Solution

The fourth proportional to 136,982.72, 205,515.60 and 97,078.85 is: 145,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,982.72 : 205,515.60 = 97,078.85 : x
  2. Step 2: Convert to fraction form
    136,982.72/205,515.60 = 97,078.85/x
  3. Step 3: Cross multiply
    136,982.72x = 205,515.60 × 97,078.85
  4. Step 4: Simplify right side
    136,982.72x = 19,951,218,105.06
  5. Step 5: Solve for x
    x = 19,951,218,105.06/136,982.72
  6. Step 6: Final answer
    x = 145,647.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.