Home / 111,245.05-167,341.11-100,840.54

Finding the Fourth Proportional to 111,245.05, 167,341.11 and 100,840.54

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Solution

The fourth proportional to 111,245.05, 167,341.11 and 100,840.54 is: 151,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,245.05 : 167,341.11 = 100,840.54 : x
  2. Step 2: Convert to fraction form
    111,245.05/167,341.11 = 100,840.54/x
  3. Step 3: Cross multiply
    111,245.05x = 167,341.11 × 100,840.54
  4. Step 4: Simplify right side
    111,245.05x = 16,874,767,981.09
  5. Step 5: Solve for x
    x = 16,874,767,981.09/111,245.05
  6. Step 6: Final answer
    x = 151,690.06

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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.