Home / 111,403.18-167,114.62-31,441.86

Finding the Fourth Proportional to 111,403.18, 167,114.62 and 31,441.86

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Solution

The fourth proportional to 111,403.18, 167,114.62 and 31,441.86 is: 47,165.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,403.18 : 167,114.62 = 31,441.86 : x
  2. Step 2: Convert to fraction form
    111,403.18/167,114.62 = 31,441.86/x
  3. Step 3: Cross multiply
    111,403.18x = 167,114.62 × 31,441.86
  4. Step 4: Simplify right side
    111,403.18x = 5,254,394,485.99
  5. Step 5: Solve for x
    x = 5,254,394,485.99/111,403.18
  6. Step 6: Final answer
    x = 47,165.57

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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.