Home / 152,414.20-228,621.30-89,428.60

Finding the Fourth Proportional to 152,414.20, 228,621.30 and 89,428.60

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Solution

The fourth proportional to 152,414.20, 228,621.30 and 89,428.60 is: 134,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,414.20 : 228,621.30 = 89,428.60 : x
  2. Step 2: Convert to fraction form
    152,414.20/228,621.30 = 89,428.60/x
  3. Step 3: Cross multiply
    152,414.20x = 228,621.30 × 89,428.60
  4. Step 4: Simplify right side
    152,414.20x = 20,445,282,789.18
  5. Step 5: Solve for x
    x = 20,445,282,789.18/152,414.20
  6. Step 6: Final answer
    x = 134,142.90

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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.