Home / 198,928.86-298,394.10-80,602.44

Finding the Fourth Proportional to 198,928.86, 298,394.10 and 80,602.44

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Solution

The fourth proportional to 198,928.86, 298,394.10 and 80,602.44 is: 120,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,928.86 : 298,394.10 = 80,602.44 : x
  2. Step 2: Convert to fraction form
    198,928.86/298,394.10 = 80,602.44/x
  3. Step 3: Cross multiply
    198,928.86x = 298,394.10 × 80,602.44
  4. Step 4: Simplify right side
    198,928.86x = 24,051,292,541.60
  5. Step 5: Solve for x
    x = 24,051,292,541.60/198,928.86
  6. Step 6: Final answer
    x = 120,903.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.