Home / 109,868.21-151,629.43-66,850.83

Finding the Fourth Proportional to 109,868.21, 151,629.43 and 66,850.83

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Solution

The fourth proportional to 109,868.21, 151,629.43 and 66,850.83 is: 92,261.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,868.21 : 151,629.43 = 66,850.83 : x
  2. Step 2: Convert to fraction form
    109,868.21/151,629.43 = 66,850.83/x
  3. Step 3: Cross multiply
    109,868.21x = 151,629.43 × 66,850.83
  4. Step 4: Simplify right side
    109,868.21x = 10,136,553,247.93
  5. Step 5: Solve for x
    x = 10,136,553,247.93/109,868.21
  6. Step 6: Final answer
    x = 92,261.02

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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.