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Finding the Fourth Proportional to 185,493.63, 255,979.94 and 100,610.76

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Solution

The fourth proportional to 185,493.63, 255,979.94 and 100,610.76 is: 138,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,493.63 : 255,979.94 = 100,610.76 : x
  2. Step 2: Convert to fraction form
    185,493.63/255,979.94 = 100,610.76/x
  3. Step 3: Cross multiply
    185,493.63x = 255,979.94 × 100,610.76
  4. Step 4: Simplify right side
    185,493.63x = 25,754,335,805.10
  5. Step 5: Solve for x
    x = 25,754,335,805.10/185,493.63
  6. Step 6: Final answer
    x = 138,842.16

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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.