Home / 120,836.08-166,756.80-67,118.50

Finding the Fourth Proportional to 120,836.08, 166,756.80 and 67,118.50

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Solution

The fourth proportional to 120,836.08, 166,756.80 and 67,118.50 is: 92,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,836.08 : 166,756.80 = 67,118.50 : x
  2. Step 2: Convert to fraction form
    120,836.08/166,756.80 = 67,118.50/x
  3. Step 3: Cross multiply
    120,836.08x = 166,756.80 × 67,118.50
  4. Step 4: Simplify right side
    120,836.08x = 11,192,466,280.80
  5. Step 5: Solve for x
    x = 11,192,466,280.80/120,836.08
  6. Step 6: Final answer
    x = 92,625.20

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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.