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Finding the Fourth Proportional to 131,345.20, 197,163.60 and 101,893.60

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Solution

The fourth proportional to 131,345.20, 197,163.60 and 101,893.60 is: 152,953.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,345.20 : 197,163.60 = 101,893.60 : x
  2. Step 2: Convert to fraction form
    131,345.20/197,163.60 = 101,893.60/x
  3. Step 3: Cross multiply
    131,345.20x = 197,163.60 × 101,893.60
  4. Step 4: Simplify right side
    131,345.20x = 20,089,708,992.96
  5. Step 5: Solve for x
    x = 20,089,708,992.96/131,345.20
  6. Step 6: Final answer
    x = 152,953.51

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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.