Home / 199,217.88-298,848.69-99,403.20

Finding the Fourth Proportional to 199,217.88, 298,848.69 and 99,403.20

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Solution

The fourth proportional to 199,217.88, 298,848.69 and 99,403.20 is: 149,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,217.88 : 298,848.69 = 99,403.20 : x
  2. Step 2: Convert to fraction form
    199,217.88/298,848.69 = 99,403.20/x
  3. Step 3: Cross multiply
    199,217.88x = 298,848.69 × 99,403.20
  4. Step 4: Simplify right side
    199,217.88x = 29,706,516,101.81
  5. Step 5: Solve for x
    x = 29,706,516,101.81/199,217.88
  6. Step 6: Final answer
    x = 149,115.71

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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.