Home / 131,881.86-181,996.70-71,454.04

Finding the Fourth Proportional to 131,881.86, 181,996.70 and 71,454.04

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Solution

The fourth proportional to 131,881.86, 181,996.70 and 71,454.04 is: 98,606.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,881.86 : 181,996.70 = 71,454.04 : x
  2. Step 2: Convert to fraction form
    131,881.86/181,996.70 = 71,454.04/x
  3. Step 3: Cross multiply
    131,881.86x = 181,996.70 × 71,454.04
  4. Step 4: Simplify right side
    131,881.86x = 13,004,399,481.67
  5. Step 5: Solve for x
    x = 13,004,399,481.67/131,881.86
  6. Step 6: Final answer
    x = 98,606.43

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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.