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Finding the Fourth Proportional to 120,598.79, 166,436.56 and 66,901.11

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Solution

The fourth proportional to 120,598.79, 166,436.56 and 66,901.11 is: 92,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,598.79 : 166,436.56 = 66,901.11 : x
  2. Step 2: Convert to fraction form
    120,598.79/166,436.56 = 66,901.11/x
  3. Step 3: Cross multiply
    120,598.79x = 166,436.56 × 66,901.11
  4. Step 4: Simplify right side
    120,598.79x = 11,134,790,608.58
  5. Step 5: Solve for x
    x = 11,134,790,608.58/120,598.79
  6. Step 6: Final answer
    x = 92,329.21

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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.