Home / 198,987.32-274,596.18-118,396.40

Finding the Fourth Proportional to 198,987.32, 274,596.18 and 118,396.40

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Solution

The fourth proportional to 198,987.32, 274,596.18 and 118,396.40 is: 163,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,987.32 : 274,596.18 = 118,396.40 : x
  2. Step 2: Convert to fraction form
    198,987.32/274,596.18 = 118,396.40/x
  3. Step 3: Cross multiply
    198,987.32x = 274,596.18 × 118,396.40
  4. Step 4: Simplify right side
    198,987.32x = 32,511,199,165.75
  5. Step 5: Solve for x
    x = 32,511,199,165.75/198,987.32
  6. Step 6: Final answer
    x = 163,383.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.