Home / 149,834.53-206,777.93-86,172.37

Finding the Fourth Proportional to 149,834.53, 206,777.93 and 86,172.37

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Solution

The fourth proportional to 149,834.53, 206,777.93 and 86,172.37 is: 118,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,834.53 : 206,777.93 = 86,172.37 : x
  2. Step 2: Convert to fraction form
    149,834.53/206,777.93 = 86,172.37/x
  3. Step 3: Cross multiply
    149,834.53x = 206,777.93 × 86,172.37
  4. Step 4: Simplify right side
    149,834.53x = 17,818,544,291.79
  5. Step 5: Solve for x
    x = 17,818,544,291.79/149,834.53
  6. Step 6: Final answer
    x = 118,921.48

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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.