Home / 171,789.81-257,785.20-71,941.62

Finding the Fourth Proportional to 171,789.81, 257,785.20 and 71,941.62

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Solution

The fourth proportional to 171,789.81, 257,785.20 and 71,941.62 is: 107,954.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,789.81 : 257,785.20 = 71,941.62 : x
  2. Step 2: Convert to fraction form
    171,789.81/257,785.20 = 71,941.62/x
  3. Step 3: Cross multiply
    171,789.81x = 257,785.20 × 71,941.62
  4. Step 4: Simplify right side
    171,789.81x = 18,545,484,900.02
  5. Step 5: Solve for x
    x = 18,545,484,900.02/171,789.81
  6. Step 6: Final answer
    x = 107,954.51

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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.