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Finding the Fourth Proportional to 165,638.49, 228,573 and 94,017.48

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Solution

The fourth proportional to 165,638.49, 228,573 and 94,017.48 is: 129,739.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,638.49 : 228,573 = 94,017.48 : x
  2. Step 2: Convert to fraction form
    165,638.49/228,573 = 94,017.48/x
  3. Step 3: Cross multiply
    165,638.49x = 228,573 × 94,017.48
  4. Step 4: Simplify right side
    165,638.49x = 21,489,857,456.04
  5. Step 5: Solve for x
    x = 21,489,857,456.04/165,638.49
  6. Step 6: Final answer
    x = 129,739.52

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1.5x scale

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.