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Finding the Fourth Proportional to 146,481.44, 202,136.21 and 81,938.22

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Solution

The fourth proportional to 146,481.44, 202,136.21 and 81,938.22 is: 113,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,481.44 : 202,136.21 = 81,938.22 : x
  2. Step 2: Convert to fraction form
    146,481.44/202,136.21 = 81,938.22/x
  3. Step 3: Cross multiply
    146,481.44x = 202,136.21 × 81,938.22
  4. Step 4: Simplify right side
    146,481.44x = 16,562,680,835.26
  5. Step 5: Solve for x
    x = 16,562,680,835.26/146,481.44
  6. Step 6: Final answer
    x = 113,070.16

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1.5x scale

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.