Home / 148,078.75-204,348.81-81,010.75

Finding the Fourth Proportional to 148,078.75, 204,348.81 and 81,010.75

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Solution

The fourth proportional to 148,078.75, 204,348.81 and 81,010.75 is: 111,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,078.75 : 204,348.81 = 81,010.75 : x
  2. Step 2: Convert to fraction form
    148,078.75/204,348.81 = 81,010.75/x
  3. Step 3: Cross multiply
    148,078.75x = 204,348.81 × 81,010.75
  4. Step 4: Simplify right side
    148,078.75x = 16,554,450,359.71
  5. Step 5: Solve for x
    x = 16,554,450,359.71/148,078.75
  6. Step 6: Final answer
    x = 111,794.91

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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.