Home / 213,417.36-294,511.68-117,921.60

Finding the Fourth Proportional to 213,417.36, 294,511.68 and 117,921.60

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Solution

The fourth proportional to 213,417.36, 294,511.68 and 117,921.60 is: 162,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,417.36 : 294,511.68 = 117,921.60 : x
  2. Step 2: Convert to fraction form
    213,417.36/294,511.68 = 117,921.60/x
  3. Step 3: Cross multiply
    213,417.36x = 294,511.68 × 117,921.60
  4. Step 4: Simplify right side
    213,417.36x = 34,729,288,524.29
  5. Step 5: Solve for x
    x = 34,729,288,524.29/213,417.36
  6. Step 6: Final answer
    x = 162,729.44

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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.