Home / 144,481.60-199,463.34-87,131.17

Finding the Fourth Proportional to 144,481.60, 199,463.34 and 87,131.17

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Solution

The fourth proportional to 144,481.60, 199,463.34 and 87,131.17 is: 120,288.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,481.60 : 199,463.34 = 87,131.17 : x
  2. Step 2: Convert to fraction form
    144,481.60/199,463.34 = 87,131.17/x
  3. Step 3: Cross multiply
    144,481.60x = 199,463.34 × 87,131.17
  4. Step 4: Simplify right side
    144,481.60x = 17,379,474,186.31
  5. Step 5: Solve for x
    x = 17,379,474,186.31/144,481.60
  6. Step 6: Final answer
    x = 120,288.49

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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.