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Finding the Fourth Proportional to 108,898.44, 150,330.36 and 72,660.12

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Solution

The fourth proportional to 108,898.44, 150,330.36 and 72,660.12 is: 100,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,898.44 : 150,330.36 = 72,660.12 : x
  2. Step 2: Convert to fraction form
    108,898.44/150,330.36 = 72,660.12/x
  3. Step 3: Cross multiply
    108,898.44x = 150,330.36 × 72,660.12
  4. Step 4: Simplify right side
    108,898.44x = 10,923,021,997.24
  5. Step 5: Solve for x
    x = 10,923,021,997.24/108,898.44
  6. Step 6: Final answer
    x = 100,304.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.