Home / 120,723.94-181,263.64-67,520.16

Finding the Fourth Proportional to 120,723.94, 181,263.64 and 67,520.16

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Solution

The fourth proportional to 120,723.94, 181,263.64 and 67,520.16 is: 101,379.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,723.94 : 181,263.64 = 67,520.16 : x
  2. Step 2: Convert to fraction form
    120,723.94/181,263.64 = 67,520.16/x
  3. Step 3: Cross multiply
    120,723.94x = 181,263.64 × 67,520.16
  4. Step 4: Simplify right side
    120,723.94x = 12,238,949,974.98
  5. Step 5: Solve for x
    x = 12,238,949,974.98/120,723.94
  6. Step 6: Final answer
    x = 101,379.64

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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.