Home / 198,928.87-274,429.15-118,311.19

Finding the Fourth Proportional to 198,928.87, 274,429.15 and 118,311.19

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Solution

The fourth proportional to 198,928.87, 274,429.15 and 118,311.19 is: 163,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,928.87 : 274,429.15 = 118,311.19 : x
  2. Step 2: Convert to fraction form
    198,928.87/274,429.15 = 118,311.19/x
  3. Step 3: Cross multiply
    198,928.87x = 274,429.15 × 118,311.19
  4. Step 4: Simplify right side
    198,928.87x = 32,468,039,307.19
  5. Step 5: Solve for x
    x = 32,468,039,307.19/198,928.87
  6. Step 6: Final answer
    x = 163,214.32

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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.