Home / 131,537.31-181,478.44-80,496.81

Finding the Fourth Proportional to 131,537.31, 181,478.44 and 80,496.81

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Solution

The fourth proportional to 131,537.31, 181,478.44 and 80,496.81 is: 111,059.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,537.31 : 181,478.44 = 80,496.81 : x
  2. Step 2: Convert to fraction form
    131,537.31/181,478.44 = 80,496.81/x
  3. Step 3: Cross multiply
    131,537.31x = 181,478.44 × 80,496.81
  4. Step 4: Simplify right side
    131,537.31x = 14,608,435,503.78
  5. Step 5: Solve for x
    x = 14,608,435,503.78/131,537.31
  6. Step 6: Final answer
    x = 111,059.25

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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.