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Finding the Fourth Proportional to 120,550.58, 166,363.66 and 66,840.59

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Solution

The fourth proportional to 120,550.58, 166,363.66 and 66,840.59 is: 92,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,550.58 : 166,363.66 = 66,840.59 : x
  2. Step 2: Convert to fraction form
    120,550.58/166,363.66 = 66,840.59/x
  3. Step 3: Cross multiply
    120,550.58x = 166,363.66 × 66,840.59
  4. Step 4: Simplify right side
    120,550.58x = 11,119,844,022.94
  5. Step 5: Solve for x
    x = 11,119,844,022.94/120,550.58
  6. Step 6: Final answer
    x = 92,242.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.