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Finding the Fourth Proportional to 131,129.96, 180,957.48 and 73,764.92

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Solution

The fourth proportional to 131,129.96, 180,957.48 and 73,764.92 is: 101,794.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,129.96 : 180,957.48 = 73,764.92 : x
  2. Step 2: Convert to fraction form
    131,129.96/180,957.48 = 73,764.92/x
  3. Step 3: Cross multiply
    131,129.96x = 180,957.48 × 73,764.92
  4. Step 4: Simplify right side
    131,129.96x = 13,348,314,035.60
  5. Step 5: Solve for x
    x = 13,348,314,035.60/131,129.96
  6. Step 6: Final answer
    x = 101,794.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.