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Finding the Fourth Proportional to 199,112.88, 274,775.68 and 109,688.88

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Solution

The fourth proportional to 199,112.88, 274,775.68 and 109,688.88 is: 151,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,112.88 : 274,775.68 = 109,688.88 : x
  2. Step 2: Convert to fraction form
    199,112.88/274,775.68 = 109,688.88/x
  3. Step 3: Cross multiply
    199,112.88x = 274,775.68 × 109,688.88
  4. Step 4: Simplify right side
    199,112.88x = 30,139,836,590.44
  5. Step 5: Solve for x
    x = 30,139,836,590.44/199,112.88
  6. Step 6: Final answer
    x = 151,370.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.