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Finding the Fourth Proportional to 169,654.52, 254,442.90 and 76,187

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Solution

The fourth proportional to 169,654.52, 254,442.90 and 76,187 is: 114,263.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,654.52 : 254,442.90 = 76,187 : x
  2. Step 2: Convert to fraction form
    169,654.52/254,442.90 = 76,187/x
  3. Step 3: Cross multiply
    169,654.52x = 254,442.90 × 76,187
  4. Step 4: Simplify right side
    169,654.52x = 19,385,241,222.30
  5. Step 5: Solve for x
    x = 19,385,241,222.30/169,654.52
  6. Step 6: Final answer
    x = 114,263.04

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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.