Home / 165,861.36-228,888.48-90,409.84

Finding the Fourth Proportional to 165,861.36, 228,888.48 and 90,409.84

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Solution

The fourth proportional to 165,861.36, 228,888.48 and 90,409.84 is: 124,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,861.36 : 228,888.48 = 90,409.84 : x
  2. Step 2: Convert to fraction form
    165,861.36/228,888.48 = 90,409.84/x
  3. Step 3: Cross multiply
    165,861.36x = 228,888.48 × 90,409.84
  4. Step 4: Simplify right side
    165,861.36x = 20,693,770,854.64
  5. Step 5: Solve for x
    x = 20,693,770,854.64/165,861.36
  6. Step 6: Final answer
    x = 124,765.47

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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.