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Finding the Fourth Proportional to 111,975.88, 167,969.94 and 45,406.12

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Solution

The fourth proportional to 111,975.88, 167,969.94 and 45,406.12 is: 68,111.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,975.88 : 167,969.94 = 45,406.12 : x
  2. Step 2: Convert to fraction form
    111,975.88/167,969.94 = 45,406.12/x
  3. Step 3: Cross multiply
    111,975.88x = 167,969.94 × 45,406.12
  4. Step 4: Simplify right side
    111,975.88x = 7,626,863,252.03
  5. Step 5: Solve for x
    x = 7,626,863,252.03/111,975.88
  6. Step 6: Final answer
    x = 68,111.66

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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.