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Finding the Fourth Proportional to 120,000.60, 180,000.90 and 36,883.80

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Solution

The fourth proportional to 120,000.60, 180,000.90 and 36,883.80 is: 55,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,000.60 : 180,000.90 = 36,883.80 : x
  2. Step 2: Convert to fraction form
    120,000.60/180,000.90 = 36,883.80/x
  3. Step 3: Cross multiply
    120,000.60x = 180,000.90 × 36,883.80
  4. Step 4: Simplify right side
    120,000.60x = 6,639,117,195.42
  5. Step 5: Solve for x
    x = 6,639,117,195.42/120,000.60
  6. Step 6: Final answer
    x = 55,325.70

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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.