Home / 149,834.33-206,777.64-86,172.17

Finding the Fourth Proportional to 149,834.33, 206,777.64 and 86,172.17

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Solution

The fourth proportional to 149,834.33, 206,777.64 and 86,172.17 is: 118,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,834.33 : 206,777.64 = 86,172.17 : x
  2. Step 2: Convert to fraction form
    149,834.33/206,777.64 = 86,172.17/x
  3. Step 3: Cross multiply
    149,834.33x = 206,777.64 × 86,172.17
  4. Step 4: Simplify right side
    149,834.33x = 17,818,476,912.39
  5. Step 5: Solve for x
    x = 17,818,476,912.39/149,834.33
  6. Step 6: Final answer
    x = 118,921.19

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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.