Home / 193,143.71-289,656.26-133,555.05

Finding the Fourth Proportional to 193,143.71, 289,656.26 and 133,555.05

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Solution

The fourth proportional to 193,143.71, 289,656.26 and 133,555.05 is: 200,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,143.71 : 289,656.26 = 133,555.05 : x
  2. Step 2: Convert to fraction form
    193,143.71/289,656.26 = 133,555.05/x
  3. Step 3: Cross multiply
    193,143.71x = 289,656.26 × 133,555.05
  4. Step 4: Simplify right side
    193,143.71x = 38,685,055,619.34
  5. Step 5: Solve for x
    x = 38,685,055,619.34/193,143.71
  6. Step 6: Final answer
    x = 200,291.57

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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.