Home / 186,985.68-280,311.80-68,629.56

Finding the Fourth Proportional to 186,985.68, 280,311.80 and 68,629.56

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Solution

The fourth proportional to 186,985.68, 280,311.80 and 68,629.56 is: 102,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,985.68 : 280,311.80 = 68,629.56 : x
  2. Step 2: Convert to fraction form
    186,985.68/280,311.80 = 68,629.56/x
  3. Step 3: Cross multiply
    186,985.68x = 280,311.80 × 68,629.56
  4. Step 4: Simplify right side
    186,985.68x = 19,237,675,153.66
  5. Step 5: Solve for x
    x = 19,237,675,153.66/186,985.68
  6. Step 6: Final answer
    x = 102,883.15

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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.