Home / 198,977.58-274,613.87-112,964.40

Finding the Fourth Proportional to 198,977.58, 274,613.87 and 112,964.40

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Solution

The fourth proportional to 198,977.58, 274,613.87 and 112,964.40 is: 155,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,977.58 : 274,613.87 = 112,964.40 : x
  2. Step 2: Convert to fraction form
    198,977.58/274,613.87 = 112,964.40/x
  3. Step 3: Cross multiply
    198,977.58x = 274,613.87 × 112,964.40
  4. Step 4: Simplify right side
    198,977.58x = 31,021,591,056.23
  5. Step 5: Solve for x
    x = 31,021,591,056.23/198,977.58
  6. Step 6: Final answer
    x = 155,904.96

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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.