Home / 198,147.16-297,220.74-85,735.36

Finding the Fourth Proportional to 198,147.16, 297,220.74 and 85,735.36

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Solution

The fourth proportional to 198,147.16, 297,220.74 and 85,735.36 is: 128,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,147.16 : 297,220.74 = 85,735.36 : x
  2. Step 2: Convert to fraction form
    198,147.16/297,220.74 = 85,735.36/x
  3. Step 3: Cross multiply
    198,147.16x = 297,220.74 × 85,735.36
  4. Step 4: Simplify right side
    198,147.16x = 25,482,327,143.37
  5. Step 5: Solve for x
    x = 25,482,327,143.37/198,147.16
  6. Step 6: Final answer
    x = 128,603.04

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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.