Home / 186,841.10-280,260.69-111,983.60

Finding the Fourth Proportional to 186,841.10, 280,260.69 and 111,983.60

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Solution

The fourth proportional to 186,841.10, 280,260.69 and 111,983.60 is: 167,974.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,841.10 : 280,260.69 = 111,983.60 : x
  2. Step 2: Convert to fraction form
    186,841.10/280,260.69 = 111,983.60/x
  3. Step 3: Cross multiply
    186,841.10x = 280,260.69 × 111,983.60
  4. Step 4: Simplify right side
    186,841.10x = 31,384,601,004.68
  5. Step 5: Solve for x
    x = 31,384,601,004.68/186,841.10
  6. Step 6: Final answer
    x = 167,974.82

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1.5x scale

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.