Home / 104,561.36-156,753.86-45,352.43

Finding the Fourth Proportional to 104,561.36, 156,753.86 and 45,352.43

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Solution

The fourth proportional to 104,561.36, 156,753.86 and 45,352.43 is: 67,990.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,561.36 : 156,753.86 = 45,352.43 : x
  2. Step 2: Convert to fraction form
    104,561.36/156,753.86 = 45,352.43/x
  3. Step 3: Cross multiply
    104,561.36x = 156,753.86 × 45,352.43
  4. Step 4: Simplify right side
    104,561.36x = 7,109,167,452.35
  5. Step 5: Solve for x
    x = 7,109,167,452.35/104,561.36
  6. Step 6: Final answer
    x = 67,990.39

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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.