Home / 120,401.96-166,147.40-66,683.76

Finding the Fourth Proportional to 120,401.96, 166,147.40 and 66,683.76

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Solution

The fourth proportional to 120,401.96, 166,147.40 and 66,683.76 is: 92,019.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,401.96 : 166,147.40 = 66,683.76 : x
  2. Step 2: Convert to fraction form
    120,401.96/166,147.40 = 66,683.76/x
  3. Step 3: Cross multiply
    120,401.96x = 166,147.40 × 66,683.76
  4. Step 4: Simplify right side
    120,401.96x = 11,079,333,346.22
  5. Step 5: Solve for x
    x = 11,079,333,346.22/120,401.96
  6. Step 6: Final answer
    x = 92,019.54

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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.