Home / 117,194.21-161,621.70-76,892.66

Finding the Fourth Proportional to 117,194.21, 161,621.70 and 76,892.66

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Solution

The fourth proportional to 117,194.21, 161,621.70 and 76,892.66 is: 106,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,194.21 : 161,621.70 = 76,892.66 : x
  2. Step 2: Convert to fraction form
    117,194.21/161,621.70 = 76,892.66/x
  3. Step 3: Cross multiply
    117,194.21x = 161,621.70 × 76,892.66
  4. Step 4: Simplify right side
    117,194.21x = 12,427,521,618.61
  5. Step 5: Solve for x
    x = 12,427,521,618.61/117,194.21
  6. Step 6: Final answer
    x = 106,042.12

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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.