Home / 99,790.26-149,605.86-57,622.47

Finding the Fourth Proportional to 99,790.26, 149,605.86 and 57,622.47

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Solution

The fourth proportional to 99,790.26, 149,605.86 and 57,622.47 is: 86,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,790.26 : 149,605.86 = 57,622.47 : x
  2. Step 2: Convert to fraction form
    99,790.26/149,605.86 = 57,622.47/x
  3. Step 3: Cross multiply
    99,790.26x = 149,605.86 × 57,622.47
  4. Step 4: Simplify right side
    99,790.26x = 8,620,659,179.67
  5. Step 5: Solve for x
    x = 8,620,659,179.67/99,790.26
  6. Step 6: Final answer
    x = 86,387.78

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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.