Home / 137,725.65-206,145.54-71,074.98

Finding the Fourth Proportional to 137,725.65, 206,145.54 and 71,074.98

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Solution

The fourth proportional to 137,725.65, 206,145.54 and 71,074.98 is: 106,383.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,725.65 : 206,145.54 = 71,074.98 : x
  2. Step 2: Convert to fraction form
    137,725.65/206,145.54 = 71,074.98/x
  3. Step 3: Cross multiply
    137,725.65x = 206,145.54 × 71,074.98
  4. Step 4: Simplify right side
    137,725.65x = 14,651,790,132.59
  5. Step 5: Solve for x
    x = 14,651,790,132.59/137,725.65
  6. Step 6: Final answer
    x = 106,383.89

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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.