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Finding the Fourth Proportional to 185,031.54, 255,333.87 and 108,540

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Solution

The fourth proportional to 185,031.54, 255,333.87 and 108,540 is: 149,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,031.54 : 255,333.87 = 108,540 : x
  2. Step 2: Convert to fraction form
    185,031.54/255,333.87 = 108,540/x
  3. Step 3: Cross multiply
    185,031.54x = 255,333.87 × 108,540
  4. Step 4: Simplify right side
    185,031.54x = 27,713,938,249.80
  5. Step 5: Solve for x
    x = 27,713,938,249.80/185,031.54
  6. Step 6: Final answer
    x = 149,779.54

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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.