Home / 165,861.06-228,888.27-90,409.56

Finding the Fourth Proportional to 165,861.06, 228,888.27 and 90,409.56

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Solution

The fourth proportional to 165,861.06, 228,888.27 and 90,409.56 is: 124,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,861.06 : 228,888.27 = 90,409.56 : x
  2. Step 2: Convert to fraction form
    165,861.06/228,888.27 = 90,409.56/x
  3. Step 3: Cross multiply
    165,861.06x = 228,888.27 × 90,409.56
  4. Step 4: Simplify right side
    165,861.06x = 20,693,687,779.86
  5. Step 5: Solve for x
    x = 20,693,687,779.86/165,861.06
  6. Step 6: Final answer
    x = 124,765.20

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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.