Home / 209,891.44-289,421.50-141,790.23

Finding the Fourth Proportional to 209,891.44, 289,421.50 and 141,790.23

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Solution

The fourth proportional to 209,891.44, 289,421.50 and 141,790.23 is: 195,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,891.44 : 289,421.50 = 141,790.23 : x
  2. Step 2: Convert to fraction form
    209,891.44/289,421.50 = 141,790.23/x
  3. Step 3: Cross multiply
    209,891.44x = 289,421.50 × 141,790.23
  4. Step 4: Simplify right side
    209,891.44x = 41,037,141,051.95
  5. Step 5: Solve for x
    x = 41,037,141,051.95/209,891.44
  6. Step 6: Final answer
    x = 195,516.03

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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.