Home / 198,820.61-274,282.04-118,202.39

Finding the Fourth Proportional to 198,820.61, 274,282.04 and 118,202.39

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Solution

The fourth proportional to 198,820.61, 274,282.04 and 118,202.39 is: 163,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,820.61 : 274,282.04 = 118,202.39 : x
  2. Step 2: Convert to fraction form
    198,820.61/274,282.04 = 118,202.39/x
  3. Step 3: Cross multiply
    198,820.61x = 274,282.04 × 118,202.39
  4. Step 4: Simplify right side
    198,820.61x = 32,420,792,071.06
  5. Step 5: Solve for x
    x = 32,420,792,071.06/198,820.61
  6. Step 6: Final answer
    x = 163,065.55

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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.