Home / 199,247.04-298,869.62-85,378.19

Finding the Fourth Proportional to 199,247.04, 298,869.62 and 85,378.19

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Solution

The fourth proportional to 199,247.04, 298,869.62 and 85,378.19 is: 128,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,247.04 : 298,869.62 = 85,378.19 : x
  2. Step 2: Convert to fraction form
    199,247.04/298,869.62 = 85,378.19/x
  3. Step 3: Cross multiply
    199,247.04x = 298,869.62 × 85,378.19
  4. Step 4: Simplify right side
    199,247.04x = 25,516,945,280.35
  5. Step 5: Solve for x
    x = 25,516,945,280.35/199,247.04
  6. Step 6: Final answer
    x = 128,066.87

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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.