Home / 107,416.89-161,112.60-28,537.20

Finding the Fourth Proportional to 107,416.89, 161,112.60 and 28,537.20

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Solution

The fourth proportional to 107,416.89, 161,112.60 and 28,537.20 is: 42,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,416.89 : 161,112.60 = 28,537.20 : x
  2. Step 2: Convert to fraction form
    107,416.89/161,112.60 = 28,537.20/x
  3. Step 3: Cross multiply
    107,416.89x = 161,112.60 × 28,537.20
  4. Step 4: Simplify right side
    107,416.89x = 4,597,702,488.72
  5. Step 5: Solve for x
    x = 4,597,702,488.72/107,416.89
  6. Step 6: Final answer
    x = 42,802.42

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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.