Home / 171,478.68-257,218.04-71,584.36

Finding the Fourth Proportional to 171,478.68, 257,218.04 and 71,584.36

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Solution

The fourth proportional to 171,478.68, 257,218.04 and 71,584.36 is: 107,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,478.68 : 257,218.04 = 71,584.36 : x
  2. Step 2: Convert to fraction form
    171,478.68/257,218.04 = 71,584.36/x
  3. Step 3: Cross multiply
    171,478.68x = 257,218.04 × 71,584.36
  4. Step 4: Simplify right side
    171,478.68x = 18,412,788,773.85
  5. Step 5: Solve for x
    x = 18,412,788,773.85/171,478.68
  6. Step 6: Final answer
    x = 107,376.55

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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.