Home / 115,988.25-173,982.38-28,436.25

Finding the Fourth Proportional to 115,988.25, 173,982.38 and 28,436.25

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Solution

The fourth proportional to 115,988.25, 173,982.38 and 28,436.25 is: 42,654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,988.25 : 173,982.38 = 28,436.25 : x
  2. Step 2: Convert to fraction form
    115,988.25/173,982.38 = 28,436.25/x
  3. Step 3: Cross multiply
    115,988.25x = 173,982.38 × 28,436.25
  4. Step 4: Simplify right side
    115,988.25x = 4,947,406,311.09
  5. Step 5: Solve for x
    x = 4,947,406,311.09/115,988.25
  6. Step 6: Final answer
    x = 42,654.38

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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.