Home / 198,943.98-298,360.38-78,946.94

Finding the Fourth Proportional to 198,943.98, 298,360.38 and 78,946.94

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Solution

The fourth proportional to 198,943.98, 298,360.38 and 78,946.94 is: 118,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,943.98 : 298,360.38 = 78,946.94 : x
  2. Step 2: Convert to fraction form
    198,943.98/298,360.38 = 78,946.94/x
  3. Step 3: Cross multiply
    198,943.98x = 298,360.38 × 78,946.94
  4. Step 4: Simplify right side
    198,943.98x = 23,554,637,526.44
  5. Step 5: Solve for x
    x = 23,554,637,526.44/198,943.98
  6. Step 6: Final answer
    x = 118,398.34

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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.