Home / 131,679.86-181,716.86-71,249.18

Finding the Fourth Proportional to 131,679.86, 181,716.86 and 71,249.18

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Solution

The fourth proportional to 131,679.86, 181,716.86 and 71,249.18 is: 98,323.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,679.86 : 181,716.86 = 71,249.18 : x
  2. Step 2: Convert to fraction form
    131,679.86/181,716.86 = 71,249.18/x
  3. Step 3: Cross multiply
    131,679.86x = 181,716.86 × 71,249.18
  4. Step 4: Simplify right side
    131,679.86x = 12,947,176,002.34
  5. Step 5: Solve for x
    x = 12,947,176,002.34/131,679.86
  6. Step 6: Final answer
    x = 98,323.13

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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.