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Finding the Fourth Proportional to 121,114.60, 169,735.40 and 121,114.60

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Solution

The fourth proportional to 121,114.60, 169,735.40 and 121,114.60 is: 169,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,114.60 : 169,735.40 = 121,114.60 : x
  2. Step 2: Convert to fraction form
    121,114.60/169,735.40 = 121,114.60/x
  3. Step 3: Cross multiply
    121,114.60x = 169,735.40 × 121,114.60
  4. Step 4: Simplify right side
    121,114.60x = 20,557,435,076.84
  5. Step 5: Solve for x
    x = 20,557,435,076.84/121,114.60
  6. Step 6: Final answer
    x = 169,735.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.