Home / 151,940.20-228,056.10-77,144.80

Finding the Fourth Proportional to 151,940.20, 228,056.10 and 77,144.80

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Solution

The fourth proportional to 151,940.20, 228,056.10 and 77,144.80 is: 115,791.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,940.20 : 228,056.10 = 77,144.80 : x
  2. Step 2: Convert to fraction form
    151,940.20/228,056.10 = 77,144.80/x
  3. Step 3: Cross multiply
    151,940.20x = 228,056.10 × 77,144.80
  4. Step 4: Simplify right side
    151,940.20x = 17,593,342,223.28
  5. Step 5: Solve for x
    x = 17,593,342,223.28/151,940.20
  6. Step 6: Final answer
    x = 115,791.23

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1.5x scale

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.