Home / 165,586.62-228,513.99-90,138.30

Finding the Fourth Proportional to 165,586.62, 228,513.99 and 90,138.30

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Solution

The fourth proportional to 165,586.62, 228,513.99 and 90,138.30 is: 124,393.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,586.62 : 228,513.99 = 90,138.30 : x
  2. Step 2: Convert to fraction form
    165,586.62/228,513.99 = 90,138.30/x
  3. Step 3: Cross multiply
    165,586.62x = 228,513.99 × 90,138.30
  4. Step 4: Simplify right side
    165,586.62x = 20,597,862,584.82
  5. Step 5: Solve for x
    x = 20,597,862,584.82/165,586.62
  6. Step 6: Final answer
    x = 124,393.28

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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.