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Finding the Fourth Proportional to 127,370.44, 190,793.08 and 74,620

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Solution

The fourth proportional to 127,370.44, 190,793.08 and 74,620 is: 111,776.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,370.44 : 190,793.08 = 74,620 : x
  2. Step 2: Convert to fraction form
    127,370.44/190,793.08 = 74,620/x
  3. Step 3: Cross multiply
    127,370.44x = 190,793.08 × 74,620
  4. Step 4: Simplify right side
    127,370.44x = 14,236,979,629.60
  5. Step 5: Solve for x
    x = 14,236,979,629.60/127,370.44
  6. Step 6: Final answer
    x = 111,776.17

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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.