Home / 198,840.84-298,169.10-74,148.36

Finding the Fourth Proportional to 198,840.84, 298,169.10 and 74,148.36

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Solution

The fourth proportional to 198,840.84, 298,169.10 and 74,148.36 is: 111,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,840.84 : 298,169.10 = 74,148.36 : x
  2. Step 2: Convert to fraction form
    198,840.84/298,169.10 = 74,148.36/x
  3. Step 3: Cross multiply
    198,840.84x = 298,169.10 × 74,148.36
  4. Step 4: Simplify right side
    198,840.84x = 22,108,749,767.68
  5. Step 5: Solve for x
    x = 22,108,749,767.68/198,840.84
  6. Step 6: Final answer
    x = 111,188.17

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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.