Home / 151,815.25-209,505.05-84,747.25

Finding the Fourth Proportional to 151,815.25, 209,505.05 and 84,747.25

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Solution

The fourth proportional to 151,815.25, 209,505.05 and 84,747.25 is: 116,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,815.25 : 209,505.05 = 84,747.25 : x
  2. Step 2: Convert to fraction form
    151,815.25/209,505.05 = 84,747.25/x
  3. Step 3: Cross multiply
    151,815.25x = 209,505.05 × 84,747.25
  4. Step 4: Simplify right side
    151,815.25x = 17,754,976,848.61
  5. Step 5: Solve for x
    x = 17,754,976,848.61/151,815.25
  6. Step 6: Final answer
    x = 116,951.21

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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.