Home / 165,178.28-228,015.78-111,535.94

Finding the Fourth Proportional to 165,178.28, 228,015.78 and 111,535.94

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Solution

The fourth proportional to 165,178.28, 228,015.78 and 111,535.94 is: 153,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,178.28 : 228,015.78 = 111,535.94 : x
  2. Step 2: Convert to fraction form
    165,178.28/228,015.78 = 111,535.94/x
  3. Step 3: Cross multiply
    165,178.28x = 228,015.78 × 111,535.94
  4. Step 4: Simplify right side
    165,178.28x = 25,431,954,357.13
  5. Step 5: Solve for x
    x = 25,431,954,357.13/165,178.28
  6. Step 6: Final answer
    x = 153,966.70

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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.