Home / 198,740.88-274,254.12-113,865.84

Finding the Fourth Proportional to 198,740.88, 274,254.12 and 113,865.84

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Solution

The fourth proportional to 198,740.88, 274,254.12 and 113,865.84 is: 157,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,740.88 : 274,254.12 = 113,865.84 : x
  2. Step 2: Convert to fraction form
    198,740.88/274,254.12 = 113,865.84/x
  3. Step 3: Cross multiply
    198,740.88x = 274,254.12 × 113,865.84
  4. Step 4: Simplify right side
    198,740.88x = 31,228,175,747.26
  5. Step 5: Solve for x
    x = 31,228,175,747.26/198,740.88
  6. Step 6: Final answer
    x = 157,130.11

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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.