Home / 120,739.90-166,622.91-67,028.38

Finding the Fourth Proportional to 120,739.90, 166,622.91 and 67,028.38

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Solution

The fourth proportional to 120,739.90, 166,622.91 and 67,028.38 is: 92,500.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,739.90 : 166,622.91 = 67,028.38 : x
  2. Step 2: Convert to fraction form
    120,739.90/166,622.91 = 67,028.38/x
  3. Step 3: Cross multiply
    120,739.90x = 166,622.91 × 67,028.38
  4. Step 4: Simplify right side
    120,739.90x = 11,168,463,728.19
  5. Step 5: Solve for x
    x = 11,168,463,728.19/120,739.90
  6. Step 6: Final answer
    x = 92,500.19

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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.