Home / 137,571.24-206,080.38-71,769

Finding the Fourth Proportional to 137,571.24, 206,080.38 and 71,769

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Solution

The fourth proportional to 137,571.24, 206,080.38 and 71,769 is: 107,509.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,571.24 : 206,080.38 = 71,769 : x
  2. Step 2: Convert to fraction form
    137,571.24/206,080.38 = 71,769/x
  3. Step 3: Cross multiply
    137,571.24x = 206,080.38 × 71,769
  4. Step 4: Simplify right side
    137,571.24x = 14,790,182,792.22
  5. Step 5: Solve for x
    x = 14,790,182,792.22/137,571.24
  6. Step 6: Final answer
    x = 107,509.26

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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.