Home / 165,910.86-228,954.06-90,459.36

Finding the Fourth Proportional to 165,910.86, 228,954.06 and 90,459.36

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Solution

The fourth proportional to 165,910.86, 228,954.06 and 90,459.36 is: 124,832.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,910.86 : 228,954.06 = 90,459.36 : x
  2. Step 2: Convert to fraction form
    165,910.86/228,954.06 = 90,459.36/x
  3. Step 3: Cross multiply
    165,910.86x = 228,954.06 × 90,459.36
  4. Step 4: Simplify right side
    165,910.86x = 20,711,037,737.00
  5. Step 5: Solve for x
    x = 20,711,037,737.00/165,910.86
  6. Step 6: Final answer
    x = 124,832.32

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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.