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Finding the Fourth Proportional to 120,598.53, 166,426.41 and 66,888.51

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Solution

The fourth proportional to 120,598.53, 166,426.41 and 66,888.51 is: 92,306.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,598.53 : 166,426.41 = 66,888.51 : x
  2. Step 2: Convert to fraction form
    120,598.53/166,426.41 = 66,888.51/x
  3. Step 3: Cross multiply
    120,598.53x = 166,426.41 × 66,888.51
  4. Step 4: Simplify right side
    120,598.53x = 11,132,014,589.55
  5. Step 5: Solve for x
    x = 11,132,014,589.55/120,598.53
  6. Step 6: Final answer
    x = 92,306.39

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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.