Home / 149,311.20-224,031.60-75,439.20

Finding the Fourth Proportional to 149,311.20, 224,031.60 and 75,439.20

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Solution

The fourth proportional to 149,311.20, 224,031.60 and 75,439.20 is: 113,191.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,311.20 : 224,031.60 = 75,439.20 : x
  2. Step 2: Convert to fraction form
    149,311.20/224,031.60 = 75,439.20/x
  3. Step 3: Cross multiply
    149,311.20x = 224,031.60 × 75,439.20
  4. Step 4: Simplify right side
    149,311.20x = 16,900,764,678.72
  5. Step 5: Solve for x
    x = 16,900,764,678.72/149,311.20
  6. Step 6: Final answer
    x = 113,191.54

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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.