Home / 111,984.40-167,976.60-111,206.80

Finding the Fourth Proportional to 111,984.40, 167,976.60 and 111,206.80

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Solution

The fourth proportional to 111,984.40, 167,976.60 and 111,206.80 is: 166,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,984.40 : 167,976.60 = 111,206.80 : x
  2. Step 2: Convert to fraction form
    111,984.40/167,976.60 = 111,206.80/x
  3. Step 3: Cross multiply
    111,984.40x = 167,976.60 × 111,206.80
  4. Step 4: Simplify right side
    111,984.40x = 18,680,140,160.88
  5. Step 5: Solve for x
    x = 18,680,140,160.88/111,984.40
  6. Step 6: Final answer
    x = 166,810.20

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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.