Home / 165,229.28-228,018.48-89,779.04

Finding the Fourth Proportional to 165,229.28, 228,018.48 and 89,779.04

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Solution

The fourth proportional to 165,229.28, 228,018.48 and 89,779.04 is: 123,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,229.28 : 228,018.48 = 89,779.04 : x
  2. Step 2: Convert to fraction form
    165,229.28/228,018.48 = 89,779.04/x
  3. Step 3: Cross multiply
    165,229.28x = 228,018.48 × 89,779.04
  4. Step 4: Simplify right side
    165,229.28x = 20,471,280,236.66
  5. Step 5: Solve for x
    x = 20,471,280,236.66/165,229.28
  6. Step 6: Final answer
    x = 123,896.20

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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.