Home / 149,781.35-206,923.74-98,221.12

Finding the Fourth Proportional to 149,781.35, 206,923.74 and 98,221.12

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Solution

The fourth proportional to 149,781.35, 206,923.74 and 98,221.12 is: 135,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,781.35 : 206,923.74 = 98,221.12 : x
  2. Step 2: Convert to fraction form
    149,781.35/206,923.74 = 98,221.12/x
  3. Step 3: Cross multiply
    149,781.35x = 206,923.74 × 98,221.12
  4. Step 4: Simplify right side
    149,781.35x = 20,324,281,497.39
  5. Step 5: Solve for x
    x = 20,324,281,497.39/149,781.35
  6. Step 6: Final answer
    x = 135,693.01

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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.