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Finding the Fourth Proportional to 121,451.60, 182,134.20 and 54,923.60

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Solution

The fourth proportional to 121,451.60, 182,134.20 and 54,923.60 is: 82,365.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,451.60 : 182,134.20 = 54,923.60 : x
  2. Step 2: Convert to fraction form
    121,451.60/182,134.20 = 54,923.60/x
  3. Step 3: Cross multiply
    121,451.60x = 182,134.20 × 54,923.60
  4. Step 4: Simplify right side
    121,451.60x = 10,003,465,947.12
  5. Step 5: Solve for x
    x = 10,003,465,947.12/121,451.60
  6. Step 6: Final answer
    x = 82,365.86

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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.