Home / 149,690.22-206,607.18-98,712.12

Finding the Fourth Proportional to 149,690.22, 206,607.18 and 98,712.12

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Solution

The fourth proportional to 149,690.22, 206,607.18 and 98,712.12 is: 136,245.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,690.22 : 206,607.18 = 98,712.12 : x
  2. Step 2: Convert to fraction form
    149,690.22/206,607.18 = 98,712.12/x
  3. Step 3: Cross multiply
    149,690.22x = 206,607.18 × 98,712.12
  4. Step 4: Simplify right side
    149,690.22x = 20,394,632,745.02
  5. Step 5: Solve for x
    x = 20,394,632,745.02/149,690.22
  6. Step 6: Final answer
    x = 136,245.59

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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.