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Finding the Fourth Proportional to 156,739.60, 234,720.60 and 125,635.60

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Solution

The fourth proportional to 156,739.60, 234,720.60 and 125,635.60 is: 188,141.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.60 : 234,720.60 = 125,635.60 : x
  2. Step 2: Convert to fraction form
    156,739.60/234,720.60 = 125,635.60/x
  3. Step 3: Cross multiply
    156,739.60x = 234,720.60 × 125,635.60
  4. Step 4: Simplify right side
    156,739.60x = 29,489,263,413.36
  5. Step 5: Solve for x
    x = 29,489,263,413.36/156,739.60
  6. Step 6: Final answer
    x = 188,141.75

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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.