Home / 198,682.51-274,173.53-112,647.28

Finding the Fourth Proportional to 198,682.51, 274,173.53 and 112,647.28

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Solution

The fourth proportional to 198,682.51, 274,173.53 and 112,647.28 is: 155,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,682.51 : 274,173.53 = 112,647.28 : x
  2. Step 2: Convert to fraction form
    198,682.51/274,173.53 = 112,647.28/x
  3. Step 3: Cross multiply
    198,682.51x = 274,173.53 × 112,647.28
  4. Step 4: Simplify right side
    198,682.51x = 30,884,903,343.39
  5. Step 5: Solve for x
    x = 30,884,903,343.39/198,682.51
  6. Step 6: Final answer
    x = 155,448.52

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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.