Home / 155,638.60-214,772.46-91,982.32

Finding the Fourth Proportional to 155,638.60, 214,772.46 and 91,982.32

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Solution

The fourth proportional to 155,638.60, 214,772.46 and 91,982.32 is: 126,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,638.60 : 214,772.46 = 91,982.32 : x
  2. Step 2: Convert to fraction form
    155,638.60/214,772.46 = 91,982.32/x
  3. Step 3: Cross multiply
    155,638.60x = 214,772.46 × 91,982.32
  4. Step 4: Simplify right side
    155,638.60x = 19,755,269,142.91
  5. Step 5: Solve for x
    x = 19,755,269,142.91/155,638.60
  6. Step 6: Final answer
    x = 126,930.40

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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.