Home / 171,400.11-257,003.99-117,425.78

Finding the Fourth Proportional to 171,400.11, 257,003.99 and 117,425.78

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Solution

The fourth proportional to 171,400.11, 257,003.99 and 117,425.78 is: 176,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,400.11 : 257,003.99 = 117,425.78 : x
  2. Step 2: Convert to fraction form
    171,400.11/257,003.99 = 117,425.78/x
  3. Step 3: Cross multiply
    171,400.11x = 257,003.99 × 117,425.78
  4. Step 4: Simplify right side
    171,400.11x = 30,178,893,988.86
  5. Step 5: Solve for x
    x = 30,178,893,988.86/171,400.11
  6. Step 6: Final answer
    x = 176,072.79

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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.