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Finding the Fourth Proportional to 100,160.48, 150,108.42 and 43,915.88

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Solution

The fourth proportional to 100,160.48, 150,108.42 and 43,915.88 is: 65,815.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,160.48 : 150,108.42 = 43,915.88 : x
  2. Step 2: Convert to fraction form
    100,160.48/150,108.42 = 43,915.88/x
  3. Step 3: Cross multiply
    100,160.48x = 150,108.42 × 43,915.88
  4. Step 4: Simplify right side
    100,160.48x = 6,592,143,359.71
  5. Step 5: Solve for x
    x = 6,592,143,359.71/100,160.48
  6. Step 6: Final answer
    x = 65,815.81

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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.