Home / 198,189.95-297,368.21-123,372.68

Finding the Fourth Proportional to 198,189.95, 297,368.21 and 123,372.68

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Solution

The fourth proportional to 198,189.95, 297,368.21 and 123,372.68 is: 185,110.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,189.95 : 297,368.21 = 123,372.68 : x
  2. Step 2: Convert to fraction form
    198,189.95/297,368.21 = 123,372.68/x
  3. Step 3: Cross multiply
    198,189.95x = 297,368.21 × 123,372.68
  4. Step 4: Simplify right side
    198,189.95x = 36,687,111,836.09
  5. Step 5: Solve for x
    x = 36,687,111,836.09/198,189.95
  6. Step 6: Final answer
    x = 185,110.86

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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.