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Finding the Fourth Proportional to 133,102.50, 199,555.32 and 80,500.32

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Solution

The fourth proportional to 133,102.50, 199,555.32 and 80,500.32 is: 120,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,102.50 : 199,555.32 = 80,500.32 : x
  2. Step 2: Convert to fraction form
    133,102.50/199,555.32 = 80,500.32/x
  3. Step 3: Cross multiply
    133,102.50x = 199,555.32 × 80,500.32
  4. Step 4: Simplify right side
    133,102.50x = 16,064,267,117.70
  5. Step 5: Solve for x
    x = 16,064,267,117.70/133,102.50
  6. Step 6: Final answer
    x = 120,690.95

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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.