Home / 198,740.32-298,120.05-65,617.63

Finding the Fourth Proportional to 198,740.32, 298,120.05 and 65,617.63

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Solution

The fourth proportional to 198,740.32, 298,120.05 and 65,617.63 is: 98,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,740.32 : 298,120.05 = 65,617.63 : x
  2. Step 2: Convert to fraction form
    198,740.32/298,120.05 = 65,617.63/x
  3. Step 3: Cross multiply
    198,740.32x = 298,120.05 × 65,617.63
  4. Step 4: Simplify right side
    198,740.32x = 19,561,930,391.18
  5. Step 5: Solve for x
    x = 19,561,930,391.18/198,740.32
  6. Step 6: Final answer
    x = 98,429.60

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1.5x scale

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.