Home / 185,112.85-277,757.28-128,274.22

Finding the Fourth Proportional to 185,112.85, 277,757.28 and 128,274.22

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Solution

The fourth proportional to 185,112.85, 277,757.28 and 128,274.22 is: 192,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,112.85 : 277,757.28 = 128,274.22 : x
  2. Step 2: Convert to fraction form
    185,112.85/277,757.28 = 128,274.22/x
  3. Step 3: Cross multiply
    185,112.85x = 277,757.28 × 128,274.22
  4. Step 4: Simplify right side
    185,112.85x = 35,629,099,379.19
  5. Step 5: Solve for x
    x = 35,629,099,379.19/185,112.85
  6. Step 6: Final answer
    x = 192,472.32

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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.