Home / 185,203.05-255,581.19-100,320.11

Finding the Fourth Proportional to 185,203.05, 255,581.19 and 100,320.11

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Solution

The fourth proportional to 185,203.05, 255,581.19 and 100,320.11 is: 138,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,203.05 : 255,581.19 = 100,320.11 : x
  2. Step 2: Convert to fraction form
    185,203.05/255,581.19 = 100,320.11/x
  3. Step 3: Cross multiply
    185,203.05x = 255,581.19 × 100,320.11
  4. Step 4: Simplify right side
    185,203.05x = 25,639,933,094.73
  5. Step 5: Solve for x
    x = 25,639,933,094.73/185,203.05
  6. Step 6: Final answer
    x = 138,442.28

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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.