Home / 80,216.32-120,192.96-56,800.72

Finding the Fourth Proportional to 80,216.32, 120,192.96 and 56,800.72

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Solution

The fourth proportional to 80,216.32, 120,192.96 and 56,800.72 is: 85,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,216.32 : 120,192.96 = 56,800.72 : x
  2. Step 2: Convert to fraction form
    80,216.32/120,192.96 = 56,800.72/x
  3. Step 3: Cross multiply
    80,216.32x = 120,192.96 × 56,800.72
  4. Step 4: Simplify right side
    80,216.32x = 6,827,046,666.93
  5. Step 5: Solve for x
    x = 6,827,046,666.93/80,216.32
  6. Step 6: Final answer
    x = 85,107.95

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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.