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Finding the Fourth Proportional to 199,114.80, 298,672.20 and 125,386.80

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Solution

The fourth proportional to 199,114.80, 298,672.20 and 125,386.80 is: 188,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,114.80 : 298,672.20 = 125,386.80 : x
  2. Step 2: Convert to fraction form
    199,114.80/298,672.20 = 125,386.80/x
  3. Step 3: Cross multiply
    199,114.80x = 298,672.20 × 125,386.80
  4. Step 4: Simplify right side
    199,114.80x = 37,449,551,406.96
  5. Step 5: Solve for x
    x = 37,449,551,406.96/199,114.80
  6. Step 6: Final answer
    x = 188,080.20

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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.