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Finding the Fourth Proportional to 169,329.60, 254,102.40 and 80,683.20

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Solution

The fourth proportional to 169,329.60, 254,102.40 and 80,683.20 is: 121,076.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,329.60 : 254,102.40 = 80,683.20 : x
  2. Step 2: Convert to fraction form
    169,329.60/254,102.40 = 80,683.20/x
  3. Step 3: Cross multiply
    169,329.60x = 254,102.40 × 80,683.20
  4. Step 4: Simplify right side
    169,329.60x = 20,501,794,759.68
  5. Step 5: Solve for x
    x = 20,501,794,759.68/169,329.60
  6. Step 6: Final answer
    x = 121,076.26

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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.