Home / 165,593.76-228,520.80-90,142.08

Finding the Fourth Proportional to 165,593.76, 228,520.80 and 90,142.08

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Solution

The fourth proportional to 165,593.76, 228,520.80 and 90,142.08 is: 124,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,593.76 : 228,520.80 = 90,142.08 : x
  2. Step 2: Convert to fraction form
    165,593.76/228,520.80 = 90,142.08/x
  3. Step 3: Cross multiply
    165,593.76x = 228,520.80 × 90,142.08
  4. Step 4: Simplify right side
    165,593.76x = 20,599,340,235.26
  5. Step 5: Solve for x
    x = 20,599,340,235.26/165,593.76
  6. Step 6: Final answer
    x = 124,396.84

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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.