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Finding the Fourth Proportional to 120,353.66, 166,074.64 and 66,625.22

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Solution

The fourth proportional to 120,353.66, 166,074.64 and 66,625.22 is: 91,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,353.66 : 166,074.64 = 66,625.22 : x
  2. Step 2: Convert to fraction form
    120,353.66/166,074.64 = 66,625.22/x
  3. Step 3: Cross multiply
    120,353.66x = 166,074.64 × 66,625.22
  4. Step 4: Simplify right side
    120,353.66x = 11,064,759,426.42
  5. Step 5: Solve for x
    x = 11,064,759,426.42/120,353.66
  6. Step 6: Final answer
    x = 91,935.38

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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.