Home / 186,840.10-280,259.19-111,982.60

Finding the Fourth Proportional to 186,840.10, 280,259.19 and 111,982.60

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Solution

The fourth proportional to 186,840.10, 280,259.19 and 111,982.60 is: 167,973.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,840.10 : 280,259.19 = 111,982.60 : x
  2. Step 2: Convert to fraction form
    186,840.10/280,259.19 = 111,982.60/x
  3. Step 3: Cross multiply
    186,840.10x = 280,259.19 × 111,982.60
  4. Step 4: Simplify right side
    186,840.10x = 31,384,152,770.09
  5. Step 5: Solve for x
    x = 31,384,152,770.09/186,840.10
  6. Step 6: Final answer
    x = 167,973.32

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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.