Home / 165,756.06-228,745.08-90,304.56

Finding the Fourth Proportional to 165,756.06, 228,745.08 and 90,304.56

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Solution

The fourth proportional to 165,756.06, 228,745.08 and 90,304.56 is: 124,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,756.06 : 228,745.08 = 90,304.56 : x
  2. Step 2: Convert to fraction form
    165,756.06/228,745.08 = 90,304.56/x
  3. Step 3: Cross multiply
    165,756.06x = 228,745.08 × 90,304.56
  4. Step 4: Simplify right side
    165,756.06x = 20,656,723,801.56
  5. Step 5: Solve for x
    x = 20,656,723,801.56/165,756.06
  6. Step 6: Final answer
    x = 124,621.23

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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.