Home / 120,800.21-166,697.66-67,081.82

Finding the Fourth Proportional to 120,800.21, 166,697.66 and 67,081.82

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Solution

The fourth proportional to 120,800.21, 166,697.66 and 67,081.82 is: 92,569.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,800.21 : 166,697.66 = 67,081.82 : x
  2. Step 2: Convert to fraction form
    120,800.21/166,697.66 = 67,081.82/x
  3. Step 3: Cross multiply
    120,800.21x = 166,697.66 × 67,081.82
  4. Step 4: Simplify right side
    120,800.21x = 11,182,381,756.76
  5. Step 5: Solve for x
    x = 11,182,381,756.76/120,800.21
  6. Step 6: Final answer
    x = 92,569.23

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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.