Home / 165,615.64-228,390.78-111,290.56

Finding the Fourth Proportional to 165,615.64, 228,390.78 and 111,290.56

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Solution

The fourth proportional to 165,615.64, 228,390.78 and 111,290.56 is: 153,474.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,615.64 : 228,390.78 = 111,290.56 : x
  2. Step 2: Convert to fraction form
    165,615.64/228,390.78 = 111,290.56/x
  3. Step 3: Cross multiply
    165,615.64x = 228,390.78 × 111,290.56
  4. Step 4: Simplify right side
    165,615.64x = 25,417,737,805.04
  5. Step 5: Solve for x
    x = 25,417,737,805.04/165,615.64
  6. Step 6: Final answer
    x = 153,474.26

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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.