Home / 131,672.09-181,706.19-71,241.41

Finding the Fourth Proportional to 131,672.09, 181,706.19 and 71,241.41

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Solution

The fourth proportional to 131,672.09, 181,706.19 and 71,241.41 is: 98,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,672.09 : 181,706.19 = 71,241.41 : x
  2. Step 2: Convert to fraction form
    131,672.09/181,706.19 = 71,241.41/x
  3. Step 3: Cross multiply
    131,672.09x = 181,706.19 × 71,241.41
  4. Step 4: Simplify right side
    131,672.09x = 12,945,004,346.34
  5. Step 5: Solve for x
    x = 12,945,004,346.34/131,672.09
  6. Step 6: Final answer
    x = 98,312.44

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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.