Home / 117,770.91-162,470.25-69,997.11

Finding the Fourth Proportional to 117,770.91, 162,470.25 and 69,997.11

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Solution

The fourth proportional to 117,770.91, 162,470.25 and 69,997.11 is: 96,564.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,770.91 : 162,470.25 = 69,997.11 : x
  2. Step 2: Convert to fraction form
    117,770.91/162,470.25 = 69,997.11/x
  3. Step 3: Cross multiply
    117,770.91x = 162,470.25 × 69,997.11
  4. Step 4: Simplify right side
    117,770.91x = 11,372,447,960.98
  5. Step 5: Solve for x
    x = 11,372,447,960.98/117,770.91
  6. Step 6: Final answer
    x = 96,564.15

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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.