Home / 131,989.77-182,296.21-89,474.49

Finding the Fourth Proportional to 131,989.77, 182,296.21 and 89,474.49

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Solution

The fourth proportional to 131,989.77, 182,296.21 and 89,474.49 is: 123,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,989.77 : 182,296.21 = 89,474.49 : x
  2. Step 2: Convert to fraction form
    131,989.77/182,296.21 = 89,474.49/x
  3. Step 3: Cross multiply
    131,989.77x = 182,296.21 × 89,474.49
  4. Step 4: Simplify right side
    131,989.77x = 16,310,860,418.68
  5. Step 5: Solve for x
    x = 16,310,860,418.68/131,989.77
  6. Step 6: Final answer
    x = 123,576.70

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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.