Home / 86,093.02-129,172.33-77,744.14

Finding the Fourth Proportional to 86,093.02, 129,172.33 and 77,744.14

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Solution

The fourth proportional to 86,093.02, 129,172.33 and 77,744.14 is: 116,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,093.02 : 129,172.33 = 77,744.14 : x
  2. Step 2: Convert to fraction form
    86,093.02/129,172.33 = 77,744.14/x
  3. Step 3: Cross multiply
    86,093.02x = 129,172.33 × 77,744.14
  4. Step 4: Simplify right side
    86,093.02x = 10,042,391,707.65
  5. Step 5: Solve for x
    x = 10,042,391,707.65/86,093.02
  6. Step 6: Final answer
    x = 116,645.83

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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.