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Finding the Fourth Proportional to 111,969, 167,954.84 and 47,918.48

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Solution

The fourth proportional to 111,969, 167,954.84 and 47,918.48 is: 71,878.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,969 : 167,954.84 = 47,918.48 : x
  2. Step 2: Convert to fraction form
    111,969/167,954.84 = 47,918.48/x
  3. Step 3: Cross multiply
    111,969x = 167,954.84 × 47,918.48
  4. Step 4: Simplify right side
    111,969x = 8,048,140,641.44
  5. Step 5: Solve for x
    x = 8,048,140,641.44/111,969
  6. Step 6: Final answer
    x = 71,878.29

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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.