Home / 165,707.16-228,678.52-90,255.64

Finding the Fourth Proportional to 165,707.16, 228,678.52 and 90,255.64

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Solution

The fourth proportional to 165,707.16, 228,678.52 and 90,255.64 is: 124,554.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,707.16 : 228,678.52 = 90,255.64 : x
  2. Step 2: Convert to fraction form
    165,707.16/228,678.52 = 90,255.64/x
  3. Step 3: Cross multiply
    165,707.16x = 228,678.52 × 90,255.64
  4. Step 4: Simplify right side
    165,707.16x = 20,639,526,176.85
  5. Step 5: Solve for x
    x = 20,639,526,176.85/165,707.16
  6. Step 6: Final answer
    x = 124,554.22

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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.