Home / 107,987.40-161,975.94-37,861.38

Finding the Fourth Proportional to 107,987.40, 161,975.94 and 37,861.38

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Solution

The fourth proportional to 107,987.40, 161,975.94 and 37,861.38 is: 56,790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,987.40 : 161,975.94 = 37,861.38 : x
  2. Step 2: Convert to fraction form
    107,987.40/161,975.94 = 37,861.38/x
  3. Step 3: Cross multiply
    107,987.40x = 161,975.94 × 37,861.38
  4. Step 4: Simplify right side
    107,987.40x = 6,132,632,615.20
  5. Step 5: Solve for x
    x = 6,132,632,615.20/107,987.40
  6. Step 6: Final answer
    x = 56,790.26

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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.