Home / 78,267.22-117,190.48-64,394.66

Finding the Fourth Proportional to 78,267.22, 117,190.48 and 64,394.66

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Solution

The fourth proportional to 78,267.22, 117,190.48 and 64,394.66 is: 96,418.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,267.22 : 117,190.48 = 64,394.66 : x
  2. Step 2: Convert to fraction form
    78,267.22/117,190.48 = 64,394.66/x
  3. Step 3: Cross multiply
    78,267.22x = 117,190.48 × 64,394.66
  4. Step 4: Simplify right side
    78,267.22x = 7,546,441,114.84
  5. Step 5: Solve for x
    x = 7,546,441,114.84/78,267.22
  6. Step 6: Final answer
    x = 96,418.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.