Home / 198,799.21-274,322.43-118,211.16

Finding the Fourth Proportional to 198,799.21, 274,322.43 and 118,211.16

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Solution

The fourth proportional to 198,799.21, 274,322.43 and 118,211.16 is: 163,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,799.21 : 274,322.43 = 118,211.16 : x
  2. Step 2: Convert to fraction form
    198,799.21/274,322.43 = 118,211.16/x
  3. Step 3: Cross multiply
    198,799.21x = 274,322.43 × 118,211.16
  4. Step 4: Simplify right side
    198,799.21x = 32,427,973,693.03
  5. Step 5: Solve for x
    x = 32,427,973,693.03/198,799.21
  6. Step 6: Final answer
    x = 163,119.23

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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.