Home / 161,629.59-222,934.12-137,262.31

Finding the Fourth Proportional to 161,629.59, 222,934.12 and 137,262.31

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Solution

The fourth proportional to 161,629.59, 222,934.12 and 137,262.31 is: 189,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,629.59 : 222,934.12 = 137,262.31 : x
  2. Step 2: Convert to fraction form
    161,629.59/222,934.12 = 137,262.31/x
  3. Step 3: Cross multiply
    161,629.59x = 222,934.12 × 137,262.31
  4. Step 4: Simplify right side
    161,629.59x = 30,600,453,414.63
  5. Step 5: Solve for x
    x = 30,600,453,414.63/161,629.59
  6. Step 6: Final answer
    x = 189,324.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.