Home / 100,730.86-151,101.68-25,851.65

Finding the Fourth Proportional to 100,730.86, 151,101.68 and 25,851.65

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Solution

The fourth proportional to 100,730.86, 151,101.68 and 25,851.65 is: 38,778.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,730.86 : 151,101.68 = 25,851.65 : x
  2. Step 2: Convert to fraction form
    100,730.86/151,101.68 = 25,851.65/x
  3. Step 3: Cross multiply
    100,730.86x = 151,101.68 × 25,851.65
  4. Step 4: Simplify right side
    100,730.86x = 3,906,227,745.77
  5. Step 5: Solve for x
    x = 3,906,227,745.77/100,730.86
  6. Step 6: Final answer
    x = 38,778.86

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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.