Home / 107,519.33-161,281.21-39,128.54

Finding the Fourth Proportional to 107,519.33, 161,281.21 and 39,128.54

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Solution

The fourth proportional to 107,519.33, 161,281.21 and 39,128.54 is: 58,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,519.33 : 161,281.21 = 39,128.54 : x
  2. Step 2: Convert to fraction form
    107,519.33/161,281.21 = 39,128.54/x
  3. Step 3: Cross multiply
    107,519.33x = 161,281.21 × 39,128.54
  4. Step 4: Simplify right side
    107,519.33x = 6,310,698,276.73
  5. Step 5: Solve for x
    x = 6,310,698,276.73/107,519.33
  6. Step 6: Final answer
    x = 58,693.62

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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.