Home / 120,600.19-166,438.47-66,902.50

Finding the Fourth Proportional to 120,600.19, 166,438.47 and 66,902.50

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Solution

The fourth proportional to 120,600.19, 166,438.47 and 66,902.50 is: 92,331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,600.19 : 166,438.47 = 66,902.50 : x
  2. Step 2: Convert to fraction form
    120,600.19/166,438.47 = 66,902.50/x
  3. Step 3: Cross multiply
    120,600.19x = 166,438.47 × 66,902.50
  4. Step 4: Simplify right side
    120,600.19x = 11,135,149,739.18
  5. Step 5: Solve for x
    x = 11,135,149,739.18/120,600.19
  6. Step 6: Final answer
    x = 92,331.11

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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.