Home / 199,074.60-298,727.10-74,428.20

Finding the Fourth Proportional to 199,074.60, 298,727.10 and 74,428.20

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Solution

The fourth proportional to 199,074.60, 298,727.10 and 74,428.20 is: 111,685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,074.60 : 298,727.10 = 74,428.20 : x
  2. Step 2: Convert to fraction form
    199,074.60/298,727.10 = 74,428.20/x
  3. Step 3: Cross multiply
    199,074.60x = 298,727.10 × 74,428.20
  4. Step 4: Simplify right side
    199,074.60x = 22,233,720,344.22
  5. Step 5: Solve for x
    x = 22,233,720,344.22/199,074.60
  6. Step 6: Final answer
    x = 111,685.37

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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.