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Finding the Fourth Proportional to 80,197.92, 120,216.96 and 30,263.04

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Solution

The fourth proportional to 80,197.92, 120,216.96 and 30,263.04 is: 45,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,197.92 : 120,216.96 = 30,263.04 : x
  2. Step 2: Convert to fraction form
    80,197.92/120,216.96 = 30,263.04/x
  3. Step 3: Cross multiply
    80,197.92x = 120,216.96 × 30,263.04
  4. Step 4: Simplify right side
    80,197.92x = 3,638,130,669.16
  5. Step 5: Solve for x
    x = 3,638,130,669.16/80,197.92
  6. Step 6: Final answer
    x = 45,364.40

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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.