Home / 165,688.15-228,649.62-90,236.65

Finding the Fourth Proportional to 165,688.15, 228,649.62 and 90,236.65

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Solution

The fourth proportional to 165,688.15, 228,649.62 and 90,236.65 is: 124,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,688.15 : 228,649.62 = 90,236.65 : x
  2. Step 2: Convert to fraction form
    165,688.15/228,649.62 = 90,236.65/x
  3. Step 3: Cross multiply
    165,688.15x = 228,649.62 × 90,236.65
  4. Step 4: Simplify right side
    165,688.15x = 20,632,575,732.57
  5. Step 5: Solve for x
    x = 20,632,575,732.57/165,688.15
  6. Step 6: Final answer
    x = 124,526.56

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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.