Home / 205,517.36-308,269.09-72,394.14

Finding the Fourth Proportional to 205,517.36, 308,269.09 and 72,394.14

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Solution

The fourth proportional to 205,517.36, 308,269.09 and 72,394.14 is: 108,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,517.36 : 308,269.09 = 72,394.14 : x
  2. Step 2: Convert to fraction form
    205,517.36/308,269.09 = 72,394.14/x
  3. Step 3: Cross multiply
    205,517.36x = 308,269.09 × 72,394.14
  4. Step 4: Simplify right side
    205,517.36x = 22,316,875,478.15
  5. Step 5: Solve for x
    x = 22,316,875,478.15/205,517.36
  6. Step 6: Final answer
    x = 108,588.76

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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.