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Finding the Fourth Proportional to 121,461.60, 182,149.20 and 54,933.60

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Solution

The fourth proportional to 121,461.60, 182,149.20 and 54,933.60 is: 82,380.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,461.60 : 182,149.20 = 54,933.60 : x
  2. Step 2: Convert to fraction form
    121,461.60/182,149.20 = 54,933.60/x
  3. Step 3: Cross multiply
    121,461.60x = 182,149.20 × 54,933.60
  4. Step 4: Simplify right side
    121,461.60x = 10,006,111,293.12
  5. Step 5: Solve for x
    x = 10,006,111,293.12/121,461.60
  6. Step 6: Final answer
    x = 82,380.86

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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.