Home / 171,729.64-257,489.70-76,942.36

Finding the Fourth Proportional to 171,729.64, 257,489.70 and 76,942.36

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Solution

The fourth proportional to 171,729.64, 257,489.70 and 76,942.36 is: 115,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,729.64 : 257,489.70 = 76,942.36 : x
  2. Step 2: Convert to fraction form
    171,729.64/257,489.70 = 76,942.36/x
  3. Step 3: Cross multiply
    171,729.64x = 257,489.70 × 76,942.36
  4. Step 4: Simplify right side
    171,729.64x = 19,811,865,193.69
  5. Step 5: Solve for x
    x = 19,811,865,193.69/171,729.64
  6. Step 6: Final answer
    x = 115,366.60

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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.