Home / 131,414.90-181,359.26-80,411.63

Finding the Fourth Proportional to 131,414.90, 181,359.26 and 80,411.63

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Solution

The fourth proportional to 131,414.90, 181,359.26 and 80,411.63 is: 110,972.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,414.90 : 181,359.26 = 80,411.63 : x
  2. Step 2: Convert to fraction form
    131,414.90/181,359.26 = 80,411.63/x
  3. Step 3: Cross multiply
    131,414.90x = 181,359.26 × 80,411.63
  4. Step 4: Simplify right side
    131,414.90x = 14,583,392,403.34
  5. Step 5: Solve for x
    x = 14,583,392,403.34/131,414.90
  6. Step 6: Final answer
    x = 110,972.14

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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.