Home / 117,747.54-162,488-66,764.94

Finding the Fourth Proportional to 117,747.54, 162,488 and 66,764.94

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Solution

The fourth proportional to 117,747.54, 162,488 and 66,764.94 is: 92,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,747.54 : 162,488 = 66,764.94 : x
  2. Step 2: Convert to fraction form
    117,747.54/162,488 = 66,764.94/x
  3. Step 3: Cross multiply
    117,747.54x = 162,488 × 66,764.94
  4. Step 4: Simplify right side
    117,747.54x = 10,848,501,570.72
  5. Step 5: Solve for x
    x = 10,848,501,570.72/117,747.54
  6. Step 6: Final answer
    x = 92,133.57

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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.