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Finding the Fourth Proportional to 156,794.30, 235,123.41 and 56,921.30

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Solution

The fourth proportional to 156,794.30, 235,123.41 and 56,921.30 is: 85,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,794.30 : 235,123.41 = 56,921.30 : x
  2. Step 2: Convert to fraction form
    156,794.30/235,123.41 = 56,921.30/x
  3. Step 3: Cross multiply
    156,794.30x = 235,123.41 × 56,921.30
  4. Step 4: Simplify right side
    156,794.30x = 13,383,530,157.63
  5. Step 5: Solve for x
    x = 13,383,530,157.63/156,794.30
  6. Step 6: Final answer
    x = 85,357.25

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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.