Home / 186,911.06-280,370.55-66,975.83

Finding the Fourth Proportional to 186,911.06, 280,370.55 and 66,975.83

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Solution

The fourth proportional to 186,911.06, 280,370.55 and 66,975.83 is: 100,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,911.06 : 280,370.55 = 66,975.83 : x
  2. Step 2: Convert to fraction form
    186,911.06/280,370.55 = 66,975.83/x
  3. Step 3: Cross multiply
    186,911.06x = 280,370.55 × 66,975.83
  4. Step 4: Simplify right side
    186,911.06x = 18,778,048,891.95
  5. Step 5: Solve for x
    x = 18,778,048,891.95/186,911.06
  6. Step 6: Final answer
    x = 100,465.16

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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.