Home / 165,678.45-228,634.56-90,226.95

Finding the Fourth Proportional to 165,678.45, 228,634.56 and 90,226.95

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Solution

The fourth proportional to 165,678.45, 228,634.56 and 90,226.95 is: 124,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,678.45 : 228,634.56 = 90,226.95 : x
  2. Step 2: Convert to fraction form
    165,678.45/228,634.56 = 90,226.95/x
  3. Step 3: Cross multiply
    165,678.45x = 228,634.56 × 90,226.95
  4. Step 4: Simplify right side
    165,678.45x = 20,628,999,013.39
  5. Step 5: Solve for x
    x = 20,628,999,013.39/165,678.45
  6. Step 6: Final answer
    x = 124,512.26

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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.