Home / 148,680.69-205,180.79-80,698.26

Finding the Fourth Proportional to 148,680.69, 205,180.79 and 80,698.26

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Solution

The fourth proportional to 148,680.69, 205,180.79 and 80,698.26 is: 111,364.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,680.69 : 205,180.79 = 80,698.26 : x
  2. Step 2: Convert to fraction form
    148,680.69/205,180.79 = 80,698.26/x
  3. Step 3: Cross multiply
    148,680.69x = 205,180.79 × 80,698.26
  4. Step 4: Simplify right side
    148,680.69x = 16,557,732,738.43
  5. Step 5: Solve for x
    x = 16,557,732,738.43/148,680.69
  6. Step 6: Final answer
    x = 111,364.38

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1.5x scale

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.