Home / 128,248.16-192,380.60-49,362.48

Finding the Fourth Proportional to 128,248.16, 192,380.60 and 49,362.48

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Solution

The fourth proportional to 128,248.16, 192,380.60 and 49,362.48 is: 74,046.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,248.16 : 192,380.60 = 49,362.48 : x
  2. Step 2: Convert to fraction form
    128,248.16/192,380.60 = 49,362.48/x
  3. Step 3: Cross multiply
    128,248.16x = 192,380.60 × 49,362.48
  4. Step 4: Simplify right side
    128,248.16x = 9,496,383,519.89
  5. Step 5: Solve for x
    x = 9,496,383,519.89/128,248.16
  6. Step 6: Final answer
    x = 74,046.94

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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.