Home / 171,579.42-257,369.31-71,685.18

Finding the Fourth Proportional to 171,579.42, 257,369.31 and 71,685.18

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Solution

The fourth proportional to 171,579.42, 257,369.31 and 71,685.18 is: 107,527.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,579.42 : 257,369.31 = 71,685.18 : x
  2. Step 2: Convert to fraction form
    171,579.42/257,369.31 = 71,685.18/x
  3. Step 3: Cross multiply
    171,579.42x = 257,369.31 × 71,685.18
  4. Step 4: Simplify right side
    171,579.42x = 18,449,565,313.83
  5. Step 5: Solve for x
    x = 18,449,565,313.83/171,579.42
  6. Step 6: Final answer
    x = 107,527.85

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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.