Home / 165,688.16-228,649.92-90,236.96

Finding the Fourth Proportional to 165,688.16, 228,649.92 and 90,236.96

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Solution

The fourth proportional to 165,688.16, 228,649.92 and 90,236.96 is: 124,527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,688.16 : 228,649.92 = 90,236.96 : x
  2. Step 2: Convert to fraction form
    165,688.16/228,649.92 = 90,236.96/x
  3. Step 3: Cross multiply
    165,688.16x = 228,649.92 × 90,236.96
  4. Step 4: Simplify right side
    165,688.16x = 20,632,673,685.04
  5. Step 5: Solve for x
    x = 20,632,673,685.04/165,688.16
  6. Step 6: Final answer
    x = 124,527.15

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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.