Home / 198,171.53-297,256.48-71,782.19

Finding the Fourth Proportional to 198,171.53, 297,256.48 and 71,782.19

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Solution

The fourth proportional to 198,171.53, 297,256.48 and 71,782.19 is: 107,673.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,171.53 : 297,256.48 = 71,782.19 : x
  2. Step 2: Convert to fraction form
    198,171.53/297,256.48 = 71,782.19/x
  3. Step 3: Cross multiply
    198,171.53x = 297,256.48 × 71,782.19
  4. Step 4: Simplify right side
    198,171.53x = 21,337,721,689.78
  5. Step 5: Solve for x
    x = 21,337,721,689.78/198,171.53
  6. Step 6: Final answer
    x = 107,673.00

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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.