Home / 86,898.06-119,857.39-79,751.14

Finding the Fourth Proportional to 86,898.06, 119,857.39 and 79,751.14

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Solution

The fourth proportional to 86,898.06, 119,857.39 and 79,751.14 is: 109,999.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,898.06 : 119,857.39 = 79,751.14 : x
  2. Step 2: Convert to fraction form
    86,898.06/119,857.39 = 79,751.14/x
  3. Step 3: Cross multiply
    86,898.06x = 119,857.39 × 79,751.14
  4. Step 4: Simplify right side
    86,898.06x = 9,558,762,990.90
  5. Step 5: Solve for x
    x = 9,558,762,990.90/86,898.06
  6. Step 6: Final answer
    x = 109,999.73

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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.