Home / 165,735.28-228,713.52-90,283.78

Finding the Fourth Proportional to 165,735.28, 228,713.52 and 90,283.78

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Solution

The fourth proportional to 165,735.28, 228,713.52 and 90,283.78 is: 124,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,735.28 : 228,713.52 = 90,283.78 : x
  2. Step 2: Convert to fraction form
    165,735.28/228,713.52 = 90,283.78/x
  3. Step 3: Cross multiply
    165,735.28x = 228,713.52 × 90,283.78
  4. Step 4: Simplify right side
    165,735.28x = 20,649,121,122.71
  5. Step 5: Solve for x
    x = 20,649,121,122.71/165,735.28
  6. Step 6: Final answer
    x = 124,590.98

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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.