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Finding the Fourth Proportional to 80,153.10, 120,219.06 and 35,769.60

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Solution

The fourth proportional to 80,153.10, 120,219.06 and 35,769.60 is: 53,649.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,153.10 : 120,219.06 = 35,769.60 : x
  2. Step 2: Convert to fraction form
    80,153.10/120,219.06 = 35,769.60/x
  3. Step 3: Cross multiply
    80,153.10x = 120,219.06 × 35,769.60
  4. Step 4: Simplify right side
    80,153.10x = 4,300,187,688.58
  5. Step 5: Solve for x
    x = 4,300,187,688.58/80,153.10
  6. Step 6: Final answer
    x = 53,649.67

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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.