Home / 198,946.18-298,501.35-80,587.36

Finding the Fourth Proportional to 198,946.18, 298,501.35 and 80,587.36

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Solution

The fourth proportional to 198,946.18, 298,501.35 and 80,587.36 is: 120,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,946.18 : 298,501.35 = 80,587.36 : x
  2. Step 2: Convert to fraction form
    198,946.18/298,501.35 = 80,587.36/x
  3. Step 3: Cross multiply
    198,946.18x = 298,501.35 × 80,587.36
  4. Step 4: Simplify right side
    198,946.18x = 24,055,435,752.94
  5. Step 5: Solve for x
    x = 24,055,435,752.94/198,946.18
  6. Step 6: Final answer
    x = 120,914.29

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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.