Home / 156,571.20-235,202.40-109,915.20

Finding the Fourth Proportional to 156,571.20, 235,202.40 and 109,915.20

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Solution

The fourth proportional to 156,571.20, 235,202.40 and 109,915.20 is: 165,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,571.20 : 235,202.40 = 109,915.20 : x
  2. Step 2: Convert to fraction form
    156,571.20/235,202.40 = 109,915.20/x
  3. Step 3: Cross multiply
    156,571.20x = 235,202.40 × 109,915.20
  4. Step 4: Simplify right side
    156,571.20x = 25,852,318,836.48
  5. Step 5: Solve for x
    x = 25,852,318,836.48/156,571.20
  6. Step 6: Final answer
    x = 165,115.42

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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.