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Finding the Fourth Proportional to 185,383.11, 278,074.54 and 67,026.77

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Solution

The fourth proportional to 185,383.11, 278,074.54 and 67,026.77 is: 100,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,383.11 : 278,074.54 = 67,026.77 : x
  2. Step 2: Convert to fraction form
    185,383.11/278,074.54 = 67,026.77/x
  3. Step 3: Cross multiply
    185,383.11x = 278,074.54 × 67,026.77
  4. Step 4: Simplify right side
    185,383.11x = 18,638,437,378.05
  5. Step 5: Solve for x
    x = 18,638,437,378.05/185,383.11
  6. Step 6: Final answer
    x = 100,540.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.