Home / 103,731.04-143,149.68-59,021.92

Finding the Fourth Proportional to 103,731.04, 143,149.68 and 59,021.92

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Solution

The fourth proportional to 103,731.04, 143,149.68 and 59,021.92 is: 81,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,731.04 : 143,149.68 = 59,021.92 : x
  2. Step 2: Convert to fraction form
    103,731.04/143,149.68 = 59,021.92/x
  3. Step 3: Cross multiply
    103,731.04x = 143,149.68 × 59,021.92
  4. Step 4: Simplify right side
    103,731.04x = 8,448,968,960.99
  5. Step 5: Solve for x
    x = 8,448,968,960.99/103,731.04
  6. Step 6: Final answer
    x = 81,450.73

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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.