Home / 120,599.85-166,438.01-66,902.16

Finding the Fourth Proportional to 120,599.85, 166,438.01 and 66,902.16

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Solution

The fourth proportional to 120,599.85, 166,438.01 and 66,902.16 is: 92,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,599.85 : 166,438.01 = 66,902.16 : x
  2. Step 2: Convert to fraction form
    120,599.85/166,438.01 = 66,902.16/x
  3. Step 3: Cross multiply
    120,599.85x = 166,438.01 × 66,902.16
  4. Step 4: Simplify right side
    120,599.85x = 11,135,062,040.59
  5. Step 5: Solve for x
    x = 11,135,062,040.59/120,599.85
  6. Step 6: Final answer
    x = 92,330.65

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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.