Home / 170,782.28-255,998.40-71,000.36

Finding the Fourth Proportional to 170,782.28, 255,998.40 and 71,000.36

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Solution

The fourth proportional to 170,782.28, 255,998.40 and 71,000.36 is: 106,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,782.28 : 255,998.40 = 71,000.36 : x
  2. Step 2: Convert to fraction form
    170,782.28/255,998.40 = 71,000.36/x
  3. Step 3: Cross multiply
    170,782.28x = 255,998.40 × 71,000.36
  4. Step 4: Simplify right side
    170,782.28x = 18,175,978,559.42
  5. Step 5: Solve for x
    x = 18,175,978,559.42/170,782.28
  6. Step 6: Final answer
    x = 106,427.78

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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.