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Finding the Fourth Proportional to 120,000.80, 179,914.80 and 67,426.40

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Solution

The fourth proportional to 120,000.80, 179,914.80 and 67,426.40 is: 101,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,000.80 : 179,914.80 = 67,426.40 : x
  2. Step 2: Convert to fraction form
    120,000.80/179,914.80 = 67,426.40/x
  3. Step 3: Cross multiply
    120,000.80x = 179,914.80 × 67,426.40
  4. Step 4: Simplify right side
    120,000.80x = 12,131,007,270.72
  5. Step 5: Solve for x
    x = 12,131,007,270.72/120,000.80
  6. Step 6: Final answer
    x = 101,091.05

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1.5x scale

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.