Home / 185,789.06-256,388.68-100,905.52

Finding the Fourth Proportional to 185,789.06, 256,388.68 and 100,905.52

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Solution

The fourth proportional to 185,789.06, 256,388.68 and 100,905.52 is: 139,249.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,789.06 : 256,388.68 = 100,905.52 : x
  2. Step 2: Convert to fraction form
    185,789.06/256,388.68 = 100,905.52/x
  3. Step 3: Cross multiply
    185,789.06x = 256,388.68 × 100,905.52
  4. Step 4: Simplify right side
    185,789.06x = 25,871,033,077.51
  5. Step 5: Solve for x
    x = 25,871,033,077.51/185,789.06
  6. Step 6: Final answer
    x = 139,249.50

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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.