Home / 112,163.91-168,277.64-45,651.77

Finding the Fourth Proportional to 112,163.91, 168,277.64 and 45,651.77

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Solution

The fourth proportional to 112,163.91, 168,277.64 and 45,651.77 is: 68,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,163.91 : 168,277.64 = 45,651.77 : x
  2. Step 2: Convert to fraction form
    112,163.91/168,277.64 = 45,651.77/x
  3. Step 3: Cross multiply
    112,163.91x = 168,277.64 × 45,651.77
  4. Step 4: Simplify right side
    112,163.91x = 7,682,171,678.82
  5. Step 5: Solve for x
    x = 7,682,171,678.82/112,163.91
  6. Step 6: Final answer
    x = 68,490.59

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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.