Home / 171,815.27-257,847.77-129,747.38

Finding the Fourth Proportional to 171,815.27, 257,847.77 and 129,747.38

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Solution

The fourth proportional to 171,815.27, 257,847.77 and 129,747.38 is: 194,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,815.27 : 257,847.77 = 129,747.38 : x
  2. Step 2: Convert to fraction form
    171,815.27/257,847.77 = 129,747.38/x
  3. Step 3: Cross multiply
    171,815.27x = 257,847.77 × 129,747.38
  4. Step 4: Simplify right side
    171,815.27x = 33,455,071,631.47
  5. Step 5: Solve for x
    x = 33,455,071,631.47/171,815.27
  6. Step 6: Final answer
    x = 194,715.36

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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.