Home / 131,212.44-181,160.33-100,944.36

Finding the Fourth Proportional to 131,212.44, 181,160.33 and 100,944.36

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Solution

The fourth proportional to 131,212.44, 181,160.33 and 100,944.36 is: 139,370.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,212.44 : 181,160.33 = 100,944.36 : x
  2. Step 2: Convert to fraction form
    131,212.44/181,160.33 = 100,944.36/x
  3. Step 3: Cross multiply
    131,212.44x = 181,160.33 × 100,944.36
  4. Step 4: Simplify right side
    131,212.44x = 18,287,113,064.52
  5. Step 5: Solve for x
    x = 18,287,113,064.52/131,212.44
  6. Step 6: Final answer
    x = 139,370.27

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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.