Home / 185,591.21-256,116.56-100,708.26

Finding the Fourth Proportional to 185,591.21, 256,116.56 and 100,708.26

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Solution

The fourth proportional to 185,591.21, 256,116.56 and 100,708.26 is: 138,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,591.21 : 256,116.56 = 100,708.26 : x
  2. Step 2: Convert to fraction form
    185,591.21/256,116.56 = 100,708.26/x
  3. Step 3: Cross multiply
    185,591.21x = 256,116.56 × 100,708.26
  4. Step 4: Simplify right side
    185,591.21x = 25,793,052,611.24
  5. Step 5: Solve for x
    x = 25,793,052,611.24/185,591.21
  6. Step 6: Final answer
    x = 138,977.77

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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.