Home / 99,786.20-149,314.80-73,542.20

Finding the Fourth Proportional to 99,786.20, 149,314.80 and 73,542.20

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Solution

The fourth proportional to 99,786.20, 149,314.80 and 73,542.20 is: 110,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,786.20 : 149,314.80 = 73,542.20 : x
  2. Step 2: Convert to fraction form
    99,786.20/149,314.80 = 73,542.20/x
  3. Step 3: Cross multiply
    99,786.20x = 149,314.80 × 73,542.20
  4. Step 4: Simplify right side
    99,786.20x = 10,980,938,884.56
  5. Step 5: Solve for x
    x = 10,980,938,884.56/99,786.20
  6. Step 6: Final answer
    x = 110,044.66

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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.