Home / 137,629.56-206,635.50-71,118.84

Finding the Fourth Proportional to 137,629.56, 206,635.50 and 71,118.84

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Solution

The fourth proportional to 137,629.56, 206,635.50 and 71,118.84 is: 106,777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,629.56 : 206,635.50 = 71,118.84 : x
  2. Step 2: Convert to fraction form
    137,629.56/206,635.50 = 71,118.84/x
  3. Step 3: Cross multiply
    137,629.56x = 206,635.50 × 71,118.84
  4. Step 4: Simplify right side
    137,629.56x = 14,695,677,062.82
  5. Step 5: Solve for x
    x = 14,695,677,062.82/137,629.56
  6. Step 6: Final answer
    x = 106,777.04

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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.