Home / 120,807.20-166,698.84-67,084.90

Finding the Fourth Proportional to 120,807.20, 166,698.84 and 67,084.90

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Solution

The fourth proportional to 120,807.20, 166,698.84 and 67,084.90 is: 92,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,807.20 : 166,698.84 = 67,084.90 : x
  2. Step 2: Convert to fraction form
    120,807.20/166,698.84 = 67,084.90/x
  3. Step 3: Cross multiply
    120,807.20x = 166,698.84 × 67,084.90
  4. Step 4: Simplify right side
    120,807.20x = 11,182,975,011.52
  5. Step 5: Solve for x
    x = 11,182,975,011.52/120,807.20
  6. Step 6: Final answer
    x = 92,568.78

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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.