Home / 165,741.16-228,720.74-90,288.04

Finding the Fourth Proportional to 165,741.16, 228,720.74 and 90,288.04

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Solution

The fourth proportional to 165,741.16, 228,720.74 and 90,288.04 is: 124,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,741.16 : 228,720.74 = 90,288.04 : x
  2. Step 2: Convert to fraction form
    165,741.16/228,720.74 = 90,288.04/x
  3. Step 3: Cross multiply
    165,741.16x = 228,720.74 × 90,288.04
  4. Step 4: Simplify right side
    165,741.16x = 20,650,747,321.95
  5. Step 5: Solve for x
    x = 20,650,747,321.95/165,741.16
  6. Step 6: Final answer
    x = 124,596.37

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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.