Home / 102,760.10-154,046.73-39,539.90

Finding the Fourth Proportional to 102,760.10, 154,046.73 and 39,539.90

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Solution

The fourth proportional to 102,760.10, 154,046.73 and 39,539.90 is: 59,273.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,760.10 : 154,046.73 = 39,539.90 : x
  2. Step 2: Convert to fraction form
    102,760.10/154,046.73 = 39,539.90/x
  3. Step 3: Cross multiply
    102,760.10x = 154,046.73 × 39,539.90
  4. Step 4: Simplify right side
    102,760.10x = 6,090,992,299.53
  5. Step 5: Solve for x
    x = 6,090,992,299.53/102,760.10
  6. Step 6: Final answer
    x = 59,273.90

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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.