Home / 120,788.83-166,683-67,077.28

Finding the Fourth Proportional to 120,788.83, 166,683 and 67,077.28

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Solution

The fourth proportional to 120,788.83, 166,683 and 67,077.28 is: 92,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,788.83 : 166,683 = 67,077.28 : x
  2. Step 2: Convert to fraction form
    120,788.83/166,683 = 67,077.28/x
  3. Step 3: Cross multiply
    120,788.83x = 166,683 × 67,077.28
  4. Step 4: Simplify right side
    120,788.83x = 11,180,642,262.24
  5. Step 5: Solve for x
    x = 11,180,642,262.24/120,788.83
  6. Step 6: Final answer
    x = 92,563.54

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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.