Home / 137,778.00-206,474.47-74,461.61

Finding the Fourth Proportional to 137,778.00, 206,474.47 and 74,461.61

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Solution

The fourth proportional to 137,778.00, 206,474.47 and 74,461.61 is: 111,588.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,778.00 : 206,474.47 = 74,461.61 : x
  2. Step 2: Convert to fraction form
    137,778.00/206,474.47 = 74,461.61/x
  3. Step 3: Cross multiply
    137,778.00x = 206,474.47 × 74,461.61
  4. Step 4: Simplify right side
    137,778.00x = 15,374,421,790.13
  5. Step 5: Solve for x
    x = 15,374,421,790.13/137,778.00
  6. Step 6: Final answer
    x = 111,588.37

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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.