Home / 186,857.85-280,323.66-68,530.21

Finding the Fourth Proportional to 186,857.85, 280,323.66 and 68,530.21

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Solution

The fourth proportional to 186,857.85, 280,323.66 and 68,530.21 is: 102,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,857.85 : 280,323.66 = 68,530.21 : x
  2. Step 2: Convert to fraction form
    186,857.85/280,323.66 = 68,530.21/x
  3. Step 3: Cross multiply
    186,857.85x = 280,323.66 × 68,530.21
  4. Step 4: Simplify right side
    186,857.85x = 19,210,640,622.23
  5. Step 5: Solve for x
    x = 19,210,640,622.23/186,857.85
  6. Step 6: Final answer
    x = 102,808.85

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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.