Home / 165,286.56-228,094.20-89,835.60

Finding the Fourth Proportional to 165,286.56, 228,094.20 and 89,835.60

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Solution

The fourth proportional to 165,286.56, 228,094.20 and 89,835.60 is: 123,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,286.56 : 228,094.20 = 89,835.60 : x
  2. Step 2: Convert to fraction form
    165,286.56/228,094.20 = 89,835.60/x
  3. Step 3: Cross multiply
    165,286.56x = 228,094.20 × 89,835.60
  4. Step 4: Simplify right side
    165,286.56x = 20,490,979,313.52
  5. Step 5: Solve for x
    x = 20,490,979,313.52/165,286.56
  6. Step 6: Final answer
    x = 123,972.45

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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.