Home / 165,409.60-228,258.66-89,958.16

Finding the Fourth Proportional to 165,409.60, 228,258.66 and 89,958.16

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Solution

The fourth proportional to 165,409.60, 228,258.66 and 89,958.16 is: 124,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,409.60 : 228,258.66 = 89,958.16 : x
  2. Step 2: Convert to fraction form
    165,409.60/228,258.66 = 89,958.16/x
  3. Step 3: Cross multiply
    165,409.60x = 228,258.66 × 89,958.16
  4. Step 4: Simplify right side
    165,409.60x = 20,533,729,057.67
  5. Step 5: Solve for x
    x = 20,533,729,057.67/165,409.60
  6. Step 6: Final answer
    x = 124,138.68

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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.