Home / 152,447.20-228,800.40-68,336.80

Finding the Fourth Proportional to 152,447.20, 228,800.40 and 68,336.80

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Solution

The fourth proportional to 152,447.20, 228,800.40 and 68,336.80 is: 102,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,447.20 : 228,800.40 = 68,336.80 : x
  2. Step 2: Convert to fraction form
    152,447.20/228,800.40 = 68,336.80/x
  3. Step 3: Cross multiply
    152,447.20x = 228,800.40 × 68,336.80
  4. Step 4: Simplify right side
    152,447.20x = 15,635,487,174.72
  5. Step 5: Solve for x
    x = 15,635,487,174.72/152,447.20
  6. Step 6: Final answer
    x = 102,563.30

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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.