Home / 185,621.26-256,143.15-109,143.46

Finding the Fourth Proportional to 185,621.26, 256,143.15 and 109,143.46

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Solution

The fourth proportional to 185,621.26, 256,143.15 and 109,143.46 is: 150,609.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,621.26 : 256,143.15 = 109,143.46 : x
  2. Step 2: Convert to fraction form
    185,621.26/256,143.15 = 109,143.46/x
  3. Step 3: Cross multiply
    185,621.26x = 256,143.15 × 109,143.46
  4. Step 4: Simplify right side
    185,621.26x = 27,956,349,646.30
  5. Step 5: Solve for x
    x = 27,956,349,646.30/185,621.26
  6. Step 6: Final answer
    x = 150,609.63

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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.