Home / 100,126.61-149,896.49-52,629.83

Finding the Fourth Proportional to 100,126.61, 149,896.49 and 52,629.83

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Solution

The fourth proportional to 100,126.61, 149,896.49 and 52,629.83 is: 78,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,126.61 : 149,896.49 = 52,629.83 : x
  2. Step 2: Convert to fraction form
    100,126.61/149,896.49 = 52,629.83/x
  3. Step 3: Cross multiply
    100,126.61x = 149,896.49 × 52,629.83
  4. Step 4: Simplify right side
    100,126.61x = 7,889,025,773.67
  5. Step 5: Solve for x
    x = 7,889,025,773.67/100,126.61
  6. Step 6: Final answer
    x = 78,790.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.