Home / 111,719.10-167,658.58-40,641.60

Finding the Fourth Proportional to 111,719.10, 167,658.58 and 40,641.60

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Solution

The fourth proportional to 111,719.10, 167,658.58 and 40,641.60 is: 60,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,719.10 : 167,658.58 = 40,641.60 : x
  2. Step 2: Convert to fraction form
    111,719.10/167,658.58 = 40,641.60/x
  3. Step 3: Cross multiply
    111,719.10x = 167,658.58 × 40,641.60
  4. Step 4: Simplify right side
    111,719.10x = 6,813,912,944.93
  5. Step 5: Solve for x
    x = 6,813,912,944.93/111,719.10
  6. Step 6: Final answer
    x = 60,991.48

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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.