Home / 209,799.40-289,539.30-119,171.56

Finding the Fourth Proportional to 209,799.40, 289,539.30 and 119,171.56

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Solution

The fourth proportional to 209,799.40, 289,539.30 and 119,171.56 is: 164,465.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,799.40 : 289,539.30 = 119,171.56 : x
  2. Step 2: Convert to fraction form
    209,799.40/289,539.30 = 119,171.56/x
  3. Step 3: Cross multiply
    209,799.40x = 289,539.30 × 119,171.56
  4. Step 4: Simplify right side
    209,799.40x = 34,504,850,062.31
  5. Step 5: Solve for x
    x = 34,504,850,062.31/209,799.40
  6. Step 6: Final answer
    x = 164,465.91

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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.