Home / 171,623.04-257,434.80-71,728.56

Finding the Fourth Proportional to 171,623.04, 257,434.80 and 71,728.56

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Solution

The fourth proportional to 171,623.04, 257,434.80 and 71,728.56 is: 107,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,623.04 : 257,434.80 = 71,728.56 : x
  2. Step 2: Convert to fraction form
    171,623.04/257,434.80 = 71,728.56/x
  3. Step 3: Cross multiply
    171,623.04x = 257,434.80 × 71,728.56
  4. Step 4: Simplify right side
    171,623.04x = 18,465,427,497.89
  5. Step 5: Solve for x
    x = 18,465,427,497.89/171,623.04
  6. Step 6: Final answer
    x = 107,592.94

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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.