Home / 131,683.41-181,722.52-71,255.12

Finding the Fourth Proportional to 131,683.41, 181,722.52 and 71,255.12

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Solution

The fourth proportional to 131,683.41, 181,722.52 and 71,255.12 is: 98,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,683.41 : 181,722.52 = 71,255.12 : x
  2. Step 2: Convert to fraction form
    131,683.41/181,722.52 = 71,255.12/x
  3. Step 3: Cross multiply
    131,683.41x = 181,722.52 × 71,255.12
  4. Step 4: Simplify right side
    131,683.41x = 12,948,659,969.30
  5. Step 5: Solve for x
    x = 12,948,659,969.30/131,683.41
  6. Step 6: Final answer
    x = 98,331.75

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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.