Home / 199,108.23-298,487.39-74,420.07

Finding the Fourth Proportional to 199,108.23, 298,487.39 and 74,420.07

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Solution

The fourth proportional to 199,108.23, 298,487.39 and 74,420.07 is: 111,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,108.23 : 298,487.39 = 74,420.07 : x
  2. Step 2: Convert to fraction form
    199,108.23/298,487.39 = 74,420.07/x
  3. Step 3: Cross multiply
    199,108.23x = 298,487.39 × 74,420.07
  4. Step 4: Simplify right side
    199,108.23x = 22,213,452,085.82
  5. Step 5: Solve for x
    x = 22,213,452,085.82/199,108.23
  6. Step 6: Final answer
    x = 111,564.71

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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.