Home / 151,266.76-208,735.62-87,608.68

Finding the Fourth Proportional to 151,266.76, 208,735.62 and 87,608.68

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Solution

The fourth proportional to 151,266.76, 208,735.62 and 87,608.68 is: 120,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,266.76 : 208,735.62 = 87,608.68 : x
  2. Step 2: Convert to fraction form
    151,266.76/208,735.62 = 87,608.68/x
  3. Step 3: Cross multiply
    151,266.76x = 208,735.62 × 87,608.68
  4. Step 4: Simplify right side
    151,266.76x = 18,287,052,137.18
  5. Step 5: Solve for x
    x = 18,287,052,137.18/151,266.76
  6. Step 6: Final answer
    x = 120,892.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.