Home / 185,753.75-256,337.91-100,871.42

Finding the Fourth Proportional to 185,753.75, 256,337.91 and 100,871.42

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Solution

The fourth proportional to 185,753.75, 256,337.91 and 100,871.42 is: 139,201.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,753.75 : 256,337.91 = 100,871.42 : x
  2. Step 2: Convert to fraction form
    185,753.75/256,337.91 = 100,871.42/x
  3. Step 3: Cross multiply
    185,753.75x = 256,337.91 × 100,871.42
  4. Step 4: Simplify right side
    185,753.75x = 25,857,167,699.84
  5. Step 5: Solve for x
    x = 25,857,167,699.84/185,753.75
  6. Step 6: Final answer
    x = 139,201.33

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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.