Home / 152,414.40-228,621.60-131,419.20

Finding the Fourth Proportional to 152,414.40, 228,621.60 and 131,419.20

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Solution

The fourth proportional to 152,414.40, 228,621.60 and 131,419.20 is: 197,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,414.40 : 228,621.60 = 131,419.20 : x
  2. Step 2: Convert to fraction form
    152,414.40/228,621.60 = 131,419.20/x
  3. Step 3: Cross multiply
    152,414.40x = 228,621.60 × 131,419.20
  4. Step 4: Simplify right side
    152,414.40x = 30,045,267,774.72
  5. Step 5: Solve for x
    x = 30,045,267,774.72/152,414.40
  6. Step 6: Final answer
    x = 197,128.80

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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.