Home / 111,942.80-167,914.20-99,695.60

Finding the Fourth Proportional to 111,942.80, 167,914.20 and 99,695.60

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Solution

The fourth proportional to 111,942.80, 167,914.20 and 99,695.60 is: 149,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,942.80 : 167,914.20 = 99,695.60 : x
  2. Step 2: Convert to fraction form
    111,942.80/167,914.20 = 99,695.60/x
  3. Step 3: Cross multiply
    111,942.80x = 167,914.20 × 99,695.60
  4. Step 4: Simplify right side
    111,942.80x = 16,740,306,917.52
  5. Step 5: Solve for x
    x = 16,740,306,917.52/111,942.80
  6. Step 6: Final answer
    x = 149,543.40

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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.