Home / 131,039.93-180,778.19-83,267.66

Finding the Fourth Proportional to 131,039.93, 180,778.19 and 83,267.66

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Solution

The fourth proportional to 131,039.93, 180,778.19 and 83,267.66 is: 114,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,039.93 : 180,778.19 = 83,267.66 : x
  2. Step 2: Convert to fraction form
    131,039.93/180,778.19 = 83,267.66/x
  3. Step 3: Cross multiply
    131,039.93x = 180,778.19 × 83,267.66
  4. Step 4: Simplify right side
    131,039.93x = 15,052,975,540.11
  5. Step 5: Solve for x
    x = 15,052,975,540.11/131,039.93
  6. Step 6: Final answer
    x = 114,873.20

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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.