Home / 171,303.24-257,107.49-81,456.72

Finding the Fourth Proportional to 171,303.24, 257,107.49 and 81,456.72

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Solution

The fourth proportional to 171,303.24, 257,107.49 and 81,456.72 is: 122,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,303.24 : 257,107.49 = 81,456.72 : x
  2. Step 2: Convert to fraction form
    171,303.24/257,107.49 = 81,456.72/x
  3. Step 3: Cross multiply
    171,303.24x = 257,107.49 × 81,456.72
  4. Step 4: Simplify right side
    171,303.24x = 20,943,132,415.55
  5. Step 5: Solve for x
    x = 20,943,132,415.55/171,303.24
  6. Step 6: Final answer
    x = 122,257.65

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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.