Home / 198,854.06-298,237.89-65,702.78

Finding the Fourth Proportional to 198,854.06, 298,237.89 and 65,702.78

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Solution

The fourth proportional to 198,854.06, 298,237.89 and 65,702.78 is: 98,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,854.06 : 298,237.89 = 65,702.78 : x
  2. Step 2: Convert to fraction form
    198,854.06/298,237.89 = 65,702.78/x
  3. Step 3: Cross multiply
    198,854.06x = 298,237.89 × 65,702.78
  4. Step 4: Simplify right side
    198,854.06x = 19,595,058,474.33
  5. Step 5: Solve for x
    x = 19,595,058,474.33/198,854.06
  6. Step 6: Final answer
    x = 98,539.90

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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.