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Finding the Fourth Proportional to 111,880.98, 167,821.47 and 28,768.50

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Solution

The fourth proportional to 111,880.98, 167,821.47 and 28,768.50 is: 43,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,880.98 : 167,821.47 = 28,768.50 : x
  2. Step 2: Convert to fraction form
    111,880.98/167,821.47 = 28,768.50/x
  3. Step 3: Cross multiply
    111,880.98x = 167,821.47 × 28,768.50
  4. Step 4: Simplify right side
    111,880.98x = 4,827,971,959.70
  5. Step 5: Solve for x
    x = 4,827,971,959.70/111,880.98
  6. Step 6: Final answer
    x = 43,152.75

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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.