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Finding the Fourth Proportional to 151,952.52, 209,654.82 and 121,801.08

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Solution

The fourth proportional to 151,952.52, 209,654.82 and 121,801.08 is: 168,053.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,952.52 : 209,654.82 = 121,801.08 : x
  2. Step 2: Convert to fraction form
    151,952.52/209,654.82 = 121,801.08/x
  3. Step 3: Cross multiply
    151,952.52x = 209,654.82 × 121,801.08
  4. Step 4: Simplify right side
    151,952.52x = 25,536,183,503.21
  5. Step 5: Solve for x
    x = 25,536,183,503.21/151,952.52
  6. Step 6: Final answer
    x = 168,053.70

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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.