Home / 165,292.05-228,101.88-89,840.55

Finding the Fourth Proportional to 165,292.05, 228,101.88 and 89,840.55

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Solution

The fourth proportional to 165,292.05, 228,101.88 and 89,840.55 is: 123,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,292.05 : 228,101.88 = 89,840.55 : x
  2. Step 2: Convert to fraction form
    165,292.05/228,101.88 = 89,840.55/x
  3. Step 3: Cross multiply
    165,292.05x = 228,101.88 × 89,840.55
  4. Step 4: Simplify right side
    165,292.05x = 20,492,798,355.23
  5. Step 5: Solve for x
    x = 20,492,798,355.23/165,292.05
  6. Step 6: Final answer
    x = 123,979.33

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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.