Home / 198,621.04-297,940.70-65,512.96

Finding the Fourth Proportional to 198,621.04, 297,940.70 and 65,512.96

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Solution

The fourth proportional to 198,621.04, 297,940.70 and 65,512.96 is: 98,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,621.04 : 297,940.70 = 65,512.96 : x
  2. Step 2: Convert to fraction form
    198,621.04/297,940.70 = 65,512.96/x
  3. Step 3: Cross multiply
    198,621.04x = 297,940.70 × 65,512.96
  4. Step 4: Simplify right side
    198,621.04x = 19,518,977,161.47
  5. Step 5: Solve for x
    x = 19,518,977,161.47/198,621.04
  6. Step 6: Final answer
    x = 98,272.45

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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.