Home / 185,202.72-255,579.30-100,321.20

Finding the Fourth Proportional to 185,202.72, 255,579.30 and 100,321.20

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Solution

The fourth proportional to 185,202.72, 255,579.30 and 100,321.20 is: 138,443.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,202.72 : 255,579.30 = 100,321.20 : x
  2. Step 2: Convert to fraction form
    185,202.72/255,579.30 = 100,321.20/x
  3. Step 3: Cross multiply
    185,202.72x = 255,579.30 × 100,321.20
  4. Step 4: Simplify right side
    185,202.72x = 25,640,022,071.16
  5. Step 5: Solve for x
    x = 25,640,022,071.16/185,202.72
  6. Step 6: Final answer
    x = 138,443.01

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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.