Home / 131,879.48-181,993.43-71,451.65

Finding the Fourth Proportional to 131,879.48, 181,993.43 and 71,451.65

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Solution

The fourth proportional to 131,879.48, 181,993.43 and 71,451.65 is: 98,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,879.48 : 181,993.43 = 71,451.65 : x
  2. Step 2: Convert to fraction form
    131,879.48/181,993.43 = 71,451.65/x
  3. Step 3: Cross multiply
    131,879.48x = 181,993.43 × 71,451.65
  4. Step 4: Simplify right side
    131,879.48x = 13,003,731,496.27
  5. Step 5: Solve for x
    x = 13,003,731,496.27/131,879.48
  6. Step 6: Final answer
    x = 98,603.15

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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.