Home / 165,564.90-228,468.33-90,111.78

Finding the Fourth Proportional to 165,564.90, 228,468.33 and 90,111.78

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Solution

The fourth proportional to 165,564.90, 228,468.33 and 90,111.78 is: 124,348.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,564.90 : 228,468.33 = 90,111.78 : x
  2. Step 2: Convert to fraction form
    165,564.90/228,468.33 = 90,111.78/x
  3. Step 3: Cross multiply
    165,564.90x = 228,468.33 × 90,111.78
  4. Step 4: Simplify right side
    165,564.90x = 20,587,687,889.93
  5. Step 5: Solve for x
    x = 20,587,687,889.93/165,564.90
  6. Step 6: Final answer
    x = 124,348.14

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1.5x scale

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.