Home / 106,731.68-160,105.61-31,845.96

Finding the Fourth Proportional to 106,731.68, 160,105.61 and 31,845.96

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Solution

The fourth proportional to 106,731.68, 160,105.61 and 31,845.96 is: 47,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,731.68 : 160,105.61 = 31,845.96 : x
  2. Step 2: Convert to fraction form
    106,731.68/160,105.61 = 31,845.96/x
  3. Step 3: Cross multiply
    106,731.68x = 160,105.61 × 31,845.96
  4. Step 4: Simplify right side
    106,731.68x = 5,098,716,931.45
  5. Step 5: Solve for x
    x = 5,098,716,931.45/106,731.68
  6. Step 6: Final answer
    x = 47,771.36

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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.