Home / 152,135.20-228,003.60-81,863.20

Finding the Fourth Proportional to 152,135.20, 228,003.60 and 81,863.20

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Solution

The fourth proportional to 152,135.20, 228,003.60 and 81,863.20 is: 122,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,135.20 : 228,003.60 = 81,863.20 : x
  2. Step 2: Convert to fraction form
    152,135.20/228,003.60 = 81,863.20/x
  3. Step 3: Cross multiply
    152,135.20x = 228,003.60 × 81,863.20
  4. Step 4: Simplify right side
    152,135.20x = 18,665,104,307.52
  5. Step 5: Solve for x
    x = 18,665,104,307.52/152,135.20
  6. Step 6: Final answer
    x = 122,687.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.