Home / 185,663.39-256,220.75-100,785.92

Finding the Fourth Proportional to 185,663.39, 256,220.75 and 100,785.92

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Solution

The fourth proportional to 185,663.39, 256,220.75 and 100,785.92 is: 139,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,663.39 : 256,220.75 = 100,785.92 : x
  2. Step 2: Convert to fraction form
    185,663.39/256,220.75 = 100,785.92/x
  3. Step 3: Cross multiply
    185,663.39x = 256,220.75 × 100,785.92
  4. Step 4: Simplify right side
    185,663.39x = 25,823,442,982.70
  5. Step 5: Solve for x
    x = 25,823,442,982.70/185,663.39
  6. Step 6: Final answer
    x = 139,087.43

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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.