Home / 209,800.80-289,513.60-119,154.56

Finding the Fourth Proportional to 209,800.80, 289,513.60 and 119,154.56

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Solution

The fourth proportional to 209,800.80, 289,513.60 and 119,154.56 is: 164,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,800.80 : 289,513.60 = 119,154.56 : x
  2. Step 2: Convert to fraction form
    209,800.80/289,513.60 = 119,154.56/x
  3. Step 3: Cross multiply
    209,800.80x = 289,513.60 × 119,154.56
  4. Step 4: Simplify right side
    209,800.80x = 34,496,865,622.02
  5. Step 5: Solve for x
    x = 34,496,865,622.02/209,800.80
  6. Step 6: Final answer
    x = 164,426.76

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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.