Home / 120,646.85-166,485.29-66,197.84

Finding the Fourth Proportional to 120,646.85, 166,485.29 and 66,197.84

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Solution

The fourth proportional to 120,646.85, 166,485.29 and 66,197.84 is: 91,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,646.85 : 166,485.29 = 66,197.84 : x
  2. Step 2: Convert to fraction form
    120,646.85/166,485.29 = 66,197.84/x
  3. Step 3: Cross multiply
    120,646.85x = 166,485.29 × 66,197.84
  4. Step 4: Simplify right side
    120,646.85x = 11,020,965,426.36
  5. Step 5: Solve for x
    x = 11,020,965,426.36/120,646.85
  6. Step 6: Final answer
    x = 91,348.97

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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.