Home / 193,039.10-289,515.45-126,943.10

Finding the Fourth Proportional to 193,039.10, 289,515.45 and 126,943.10

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Solution

The fourth proportional to 193,039.10, 289,515.45 and 126,943.10 is: 190,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,039.10 : 289,515.45 = 126,943.10 : x
  2. Step 2: Convert to fraction form
    193,039.10/289,515.45 = 126,943.10/x
  3. Step 3: Cross multiply
    193,039.10x = 289,515.45 × 126,943.10
  4. Step 4: Simplify right side
    193,039.10x = 36,751,988,720.90
  5. Step 5: Solve for x
    x = 36,751,988,720.90/193,039.10
  6. Step 6: Final answer
    x = 190,386.24

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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.