Home / 198,559.09-274,051.40-117,971.10

Finding the Fourth Proportional to 198,559.09, 274,051.40 and 117,971.10

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Solution

The fourth proportional to 198,559.09, 274,051.40 and 117,971.10 is: 162,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,559.09 : 274,051.40 = 117,971.10 : x
  2. Step 2: Convert to fraction form
    198,559.09/274,051.40 = 117,971.10/x
  3. Step 3: Cross multiply
    198,559.09x = 274,051.40 × 117,971.10
  4. Step 4: Simplify right side
    198,559.09x = 32,330,145,114.54
  5. Step 5: Solve for x
    x = 32,330,145,114.54/198,559.09
  6. Step 6: Final answer
    x = 162,823.80

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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.