Home / 165,321.35-228,168.36-100,828.00

Finding the Fourth Proportional to 165,321.35, 228,168.36 and 100,828.00

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Solution

The fourth proportional to 165,321.35, 228,168.36 and 100,828.00 is: 139,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,321.35 : 228,168.36 = 100,828.00 : x
  2. Step 2: Convert to fraction form
    165,321.35/228,168.36 = 100,828.00/x
  3. Step 3: Cross multiply
    165,321.35x = 228,168.36 × 100,828.00
  4. Step 4: Simplify right side
    165,321.35x = 23,005,758,831.66
  5. Step 5: Solve for x
    x = 23,005,758,831.66/165,321.35
  6. Step 6: Final answer
    x = 139,157.83

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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.