Home / 103,806.72-143,252.60-58,499.24

Finding the Fourth Proportional to 103,806.72, 143,252.60 and 58,499.24

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Solution

The fourth proportional to 103,806.72, 143,252.60 and 58,499.24 is: 80,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,806.72 : 143,252.60 = 58,499.24 : x
  2. Step 2: Convert to fraction form
    103,806.72/143,252.60 = 58,499.24/x
  3. Step 3: Cross multiply
    103,806.72x = 143,252.60 × 58,499.24
  4. Step 4: Simplify right side
    103,806.72x = 8,380,167,219.26
  5. Step 5: Solve for x
    x = 8,380,167,219.26/103,806.72
  6. Step 6: Final answer
    x = 80,728.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.