Home / 185,204.80-277,811.26-128,222.56

Finding the Fourth Proportional to 185,204.80, 277,811.26 and 128,222.56

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Solution

The fourth proportional to 185,204.80, 277,811.26 and 128,222.56 is: 192,336.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,204.80 : 277,811.26 = 128,222.56 : x
  2. Step 2: Convert to fraction form
    185,204.80/277,811.26 = 128,222.56/x
  3. Step 3: Cross multiply
    185,204.80x = 277,811.26 × 128,222.56
  4. Step 4: Simplify right side
    185,204.80x = 35,621,670,954.03
  5. Step 5: Solve for x
    x = 35,621,670,954.03/185,204.80
  6. Step 6: Final answer
    x = 192,336.65

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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.