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Finding the Fourth Proportional to 111,988, 167,999.28 and 41,877.28

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Solution

The fourth proportional to 111,988, 167,999.28 and 41,877.28 is: 62,822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,988 : 167,999.28 = 41,877.28 : x
  2. Step 2: Convert to fraction form
    111,988/167,999.28 = 41,877.28/x
  3. Step 3: Cross multiply
    111,988x = 167,999.28 × 41,877.28
  4. Step 4: Simplify right side
    111,988x = 7,035,352,888.36
  5. Step 5: Solve for x
    x = 7,035,352,888.36/111,988
  6. Step 6: Final answer
    x = 62,822.38

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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.