Home / 131,812.11-181,896.57-74,453.58

Finding the Fourth Proportional to 131,812.11, 181,896.57 and 74,453.58

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Solution

The fourth proportional to 131,812.11, 181,896.57 and 74,453.58 is: 102,743.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,812.11 : 181,896.57 = 74,453.58 : x
  2. Step 2: Convert to fraction form
    131,812.11/181,896.57 = 74,453.58/x
  3. Step 3: Cross multiply
    131,812.11x = 181,896.57 × 74,453.58
  4. Step 4: Simplify right side
    131,812.11x = 13,542,850,826.22
  5. Step 5: Solve for x
    x = 13,542,850,826.22/131,812.11
  6. Step 6: Final answer
    x = 102,743.60

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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.