Home / 185,203.48-255,579.96-100,320.76

Finding the Fourth Proportional to 185,203.48, 255,579.96 and 100,320.76

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Solution

The fourth proportional to 185,203.48, 255,579.96 and 100,320.76 is: 138,442.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,203.48 : 255,579.96 = 100,320.76 : x
  2. Step 2: Convert to fraction form
    185,203.48/255,579.96 = 100,320.76/x
  3. Step 3: Cross multiply
    185,203.48x = 255,579.96 × 100,320.76
  4. Step 4: Simplify right side
    185,203.48x = 25,639,975,827.97
  5. Step 5: Solve for x
    x = 25,639,975,827.97/185,203.48
  6. Step 6: Final answer
    x = 138,442.19

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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.