Home / 192,810.20-289,038.17-66,420.38

Finding the Fourth Proportional to 192,810.20, 289,038.17 and 66,420.38

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Solution

The fourth proportional to 192,810.20, 289,038.17 and 66,420.38 is: 99,569.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,810.20 : 289,038.17 = 66,420.38 : x
  2. Step 2: Convert to fraction form
    192,810.20/289,038.17 = 66,420.38/x
  3. Step 3: Cross multiply
    192,810.20x = 289,038.17 × 66,420.38
  4. Step 4: Simplify right side
    192,810.20x = 19,198,025,974.55
  5. Step 5: Solve for x
    x = 19,198,025,974.55/192,810.20
  6. Step 6: Final answer
    x = 99,569.56

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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.