Home / 165,933.36-228,992.76-90,486

Finding the Fourth Proportional to 165,933.36, 228,992.76 and 90,486

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Solution

The fourth proportional to 165,933.36, 228,992.76 and 90,486 is: 124,873.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,933.36 : 228,992.76 = 90,486 : x
  2. Step 2: Convert to fraction form
    165,933.36/228,992.76 = 90,486/x
  3. Step 3: Cross multiply
    165,933.36x = 228,992.76 × 90,486
  4. Step 4: Simplify right side
    165,933.36x = 20,720,638,881.36
  5. Step 5: Solve for x
    x = 20,720,638,881.36/165,933.36
  6. Step 6: Final answer
    x = 124,873.26

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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.