Home / 165,730.28-228,706.60-90,278.80

Finding the Fourth Proportional to 165,730.28, 228,706.60 and 90,278.80

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Solution

The fourth proportional to 165,730.28, 228,706.60 and 90,278.80 is: 124,584.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,730.28 : 228,706.60 = 90,278.80 : x
  2. Step 2: Convert to fraction form
    165,730.28/228,706.60 = 90,278.80/x
  3. Step 3: Cross multiply
    165,730.28x = 228,706.60 × 90,278.80
  4. Step 4: Simplify right side
    165,730.28x = 20,647,357,400.08
  5. Step 5: Solve for x
    x = 20,647,357,400.08/165,730.28
  6. Step 6: Final answer
    x = 124,584.10

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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.