Home / 148,766.69-205,297.28-80,783.06

Finding the Fourth Proportional to 148,766.69, 205,297.28 and 80,783.06

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Solution

The fourth proportional to 148,766.69, 205,297.28 and 80,783.06 is: 111,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,766.69 : 205,297.28 = 80,783.06 : x
  2. Step 2: Convert to fraction form
    148,766.69/205,297.28 = 80,783.06/x
  3. Step 3: Cross multiply
    148,766.69x = 205,297.28 × 80,783.06
  4. Step 4: Simplify right side
    148,766.69x = 16,584,541,815.02
  5. Step 5: Solve for x
    x = 16,584,541,815.02/148,766.69
  6. Step 6: Final answer
    x = 111,480.21

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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.