Home / 185,918.16-278,910.72-67,755.36

Finding the Fourth Proportional to 185,918.16, 278,910.72 and 67,755.36

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Solution

The fourth proportional to 185,918.16, 278,910.72 and 67,755.36 is: 101,645.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,918.16 : 278,910.72 = 67,755.36 : x
  2. Step 2: Convert to fraction form
    185,918.16/278,910.72 = 67,755.36/x
  3. Step 3: Cross multiply
    185,918.16x = 278,910.72 × 67,755.36
  4. Step 4: Simplify right side
    185,918.16x = 18,897,696,241.46
  5. Step 5: Solve for x
    x = 18,897,696,241.46/185,918.16
  6. Step 6: Final answer
    x = 101,645.24

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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.