Home / 131,682.96-181,721.12-71,252.28

Finding the Fourth Proportional to 131,682.96, 181,721.12 and 71,252.28

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Solution

The fourth proportional to 131,682.96, 181,721.12 and 71,252.28 is: 98,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,682.96 : 181,721.12 = 71,252.28 : x
  2. Step 2: Convert to fraction form
    131,682.96/181,721.12 = 71,252.28/x
  3. Step 3: Cross multiply
    131,682.96x = 181,721.12 × 71,252.28
  4. Step 4: Simplify right side
    131,682.96x = 12,948,043,767.89
  5. Step 5: Solve for x
    x = 12,948,043,767.89/131,682.96
  6. Step 6: Final answer
    x = 98,327.41

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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.