Home / 193,280.45-289,851.20-66,886.38

Finding the Fourth Proportional to 193,280.45, 289,851.20 and 66,886.38

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Solution

The fourth proportional to 193,280.45, 289,851.20 and 66,886.38 is: 100,305.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,280.45 : 289,851.20 = 66,886.38 : x
  2. Step 2: Convert to fraction form
    193,280.45/289,851.20 = 66,886.38/x
  3. Step 3: Cross multiply
    193,280.45x = 289,851.20 × 66,886.38
  4. Step 4: Simplify right side
    193,280.45x = 19,387,096,309.98
  5. Step 5: Solve for x
    x = 19,387,096,309.98/193,280.45
  6. Step 6: Final answer
    x = 100,305.52

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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.