Home / 185,643.06-256,187.72-100,760.16

Finding the Fourth Proportional to 185,643.06, 256,187.72 and 100,760.16

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Solution

The fourth proportional to 185,643.06, 256,187.72 and 100,760.16 is: 139,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,643.06 : 256,187.72 = 100,760.16 : x
  2. Step 2: Convert to fraction form
    185,643.06/256,187.72 = 100,760.16/x
  3. Step 3: Cross multiply
    185,643.06x = 256,187.72 × 100,760.16
  4. Step 4: Simplify right side
    185,643.06x = 25,813,515,153.43
  5. Step 5: Solve for x
    x = 25,813,515,153.43/185,643.06
  6. Step 6: Final answer
    x = 139,049.18

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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.