Home / 100,290.76-150,397.26-53,518.12

Finding the Fourth Proportional to 100,290.76, 150,397.26 and 53,518.12

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Solution

The fourth proportional to 100,290.76, 150,397.26 and 53,518.12 is: 80,256.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,290.76 : 150,397.26 = 53,518.12 : x
  2. Step 2: Convert to fraction form
    100,290.76/150,397.26 = 53,518.12/x
  3. Step 3: Cross multiply
    100,290.76x = 150,397.26 × 53,518.12
  4. Step 4: Simplify right side
    100,290.76x = 8,048,978,608.35
  5. Step 5: Solve for x
    x = 8,048,978,608.35/100,290.76
  6. Step 6: Final answer
    x = 80,256.43

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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.