Home / 137,708.40-206,501.16-39,189.36

Finding the Fourth Proportional to 137,708.40, 206,501.16 and 39,189.36

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Solution

The fourth proportional to 137,708.40, 206,501.16 and 39,189.36 is: 58,766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,708.40 : 206,501.16 = 39,189.36 : x
  2. Step 2: Convert to fraction form
    137,708.40/206,501.16 = 39,189.36/x
  3. Step 3: Cross multiply
    137,708.40x = 206,501.16 × 39,189.36
  4. Step 4: Simplify right side
    137,708.40x = 8,092,648,299.66
  5. Step 5: Solve for x
    x = 8,092,648,299.66/137,708.40
  6. Step 6: Final answer
    x = 58,766.56

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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.