Home / 114,771.87-172,163.58-81,396.63

Finding the Fourth Proportional to 114,771.87, 172,163.58 and 81,396.63

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Solution

The fourth proportional to 114,771.87, 172,163.58 and 81,396.63 is: 122,099.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,771.87 : 172,163.58 = 81,396.63 : x
  2. Step 2: Convert to fraction form
    114,771.87/172,163.58 = 81,396.63/x
  3. Step 3: Cross multiply
    114,771.87x = 172,163.58 × 81,396.63
  4. Step 4: Simplify right side
    114,771.87x = 14,013,535,220.74
  5. Step 5: Solve for x
    x = 14,013,535,220.74/114,771.87
  6. Step 6: Final answer
    x = 122,099.04

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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.