Home / 165,318.10-228,143.69-100,791.07

Finding the Fourth Proportional to 165,318.10, 228,143.69 and 100,791.07

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Solution

The fourth proportional to 165,318.10, 228,143.69 and 100,791.07 is: 139,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,318.10 : 228,143.69 = 100,791.07 : x
  2. Step 2: Convert to fraction form
    165,318.10/228,143.69 = 100,791.07/x
  3. Step 3: Cross multiply
    165,318.10x = 228,143.69 × 100,791.07
  4. Step 4: Simplify right side
    165,318.10x = 22,994,845,932.50
  5. Step 5: Solve for x
    x = 22,994,845,932.50/165,318.10
  6. Step 6: Final answer
    x = 139,094.55

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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.