Home / 185,571.30-256,088.34-100,688.34

Finding the Fourth Proportional to 185,571.30, 256,088.34 and 100,688.34

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Solution

The fourth proportional to 185,571.30, 256,088.34 and 100,688.34 is: 138,949.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,571.30 : 256,088.34 = 100,688.34 : x
  2. Step 2: Convert to fraction form
    185,571.30/256,088.34 = 100,688.34/x
  3. Step 3: Cross multiply
    185,571.30x = 256,088.34 × 100,688.34
  4. Step 4: Simplify right side
    185,571.30x = 25,785,109,847.96
  5. Step 5: Solve for x
    x = 25,785,109,847.96/185,571.30
  6. Step 6: Final answer
    x = 138,949.88

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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.