Home / 117,654.88-162,365.28-63,940.75

Finding the Fourth Proportional to 117,654.88, 162,365.28 and 63,940.75

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Solution

The fourth proportional to 117,654.88, 162,365.28 and 63,940.75 is: 88,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,654.88 : 162,365.28 = 63,940.75 : x
  2. Step 2: Convert to fraction form
    117,654.88/162,365.28 = 63,940.75/x
  3. Step 3: Cross multiply
    117,654.88x = 162,365.28 × 63,940.75
  4. Step 4: Simplify right side
    117,654.88x = 10,381,756,645.63
  5. Step 5: Solve for x
    x = 10,381,756,645.63/117,654.88
  6. Step 6: Final answer
    x = 88,239.07

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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.