Home / 185,640.12-256,124.52-109,134.72

Finding the Fourth Proportional to 185,640.12, 256,124.52 and 109,134.72

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Solution

The fourth proportional to 185,640.12, 256,124.52 and 109,134.72 is: 150,571.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,640.12 : 256,124.52 = 109,134.72 : x
  2. Step 2: Convert to fraction form
    185,640.12/256,124.52 = 109,134.72/x
  3. Step 3: Cross multiply
    185,640.12x = 256,124.52 × 109,134.72
  4. Step 4: Simplify right side
    185,640.12x = 27,952,077,775.33
  5. Step 5: Solve for x
    x = 27,952,077,775.33/185,640.12
  6. Step 6: Final answer
    x = 150,571.32

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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.