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Finding the Fourth Proportional to 156,925.60, 234,999.60 and 100,679.20

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Solution

The fourth proportional to 156,925.60, 234,999.60 and 100,679.20 is: 150,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,925.60 : 234,999.60 = 100,679.20 : x
  2. Step 2: Convert to fraction form
    156,925.60/234,999.60 = 100,679.20/x
  3. Step 3: Cross multiply
    156,925.60x = 234,999.60 × 100,679.20
  4. Step 4: Simplify right side
    156,925.60x = 23,659,571,728.32
  5. Step 5: Solve for x
    x = 23,659,571,728.32/156,925.60
  6. Step 6: Final answer
    x = 150,769.36

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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.