Home / 151,936.20-228,050.10-77,140.80

Finding the Fourth Proportional to 151,936.20, 228,050.10 and 77,140.80

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Solution

The fourth proportional to 151,936.20, 228,050.10 and 77,140.80 is: 115,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,936.20 : 228,050.10 = 77,140.80 : x
  2. Step 2: Convert to fraction form
    151,936.20/228,050.10 = 77,140.80/x
  3. Step 3: Cross multiply
    151,936.20x = 228,050.10 × 77,140.80
  4. Step 4: Simplify right side
    151,936.20x = 17,591,967,154.08
  5. Step 5: Solve for x
    x = 17,591,967,154.08/151,936.20
  6. Step 6: Final answer
    x = 115,785.23

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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.