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Finding the Fourth Proportional to 121,481.40, 182,222.10 and 109,671.60

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Solution

The fourth proportional to 121,481.40, 182,222.10 and 109,671.60 is: 164,507.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,481.40 : 182,222.10 = 109,671.60 : x
  2. Step 2: Convert to fraction form
    121,481.40/182,222.10 = 109,671.60/x
  3. Step 3: Cross multiply
    121,481.40x = 182,222.10 × 109,671.60
  4. Step 4: Simplify right side
    121,481.40x = 19,984,589,262.36
  5. Step 5: Solve for x
    x = 19,984,589,262.36/121,481.40
  6. Step 6: Final answer
    x = 164,507.40

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1.5x scale

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.