Home / 198,913.68-274,492.80-113,971.68

Finding the Fourth Proportional to 198,913.68, 274,492.80 and 113,971.68

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Solution

The fourth proportional to 198,913.68, 274,492.80 and 113,971.68 is: 157,276.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,913.68 : 274,492.80 = 113,971.68 : x
  2. Step 2: Convert to fraction form
    198,913.68/274,492.80 = 113,971.68/x
  3. Step 3: Cross multiply
    198,913.68x = 274,492.80 × 113,971.68
  4. Step 4: Simplify right side
    198,913.68x = 31,284,405,563.90
  5. Step 5: Solve for x
    x = 31,284,405,563.90/198,913.68
  6. Step 6: Final answer
    x = 157,276.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.