Home / 209,703.21-289,393.73-114,209.83

Finding the Fourth Proportional to 209,703.21, 289,393.73 and 114,209.83

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Solution

The fourth proportional to 209,703.21, 289,393.73 and 114,209.83 is: 157,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,703.21 : 289,393.73 = 114,209.83 : x
  2. Step 2: Convert to fraction form
    209,703.21/289,393.73 = 114,209.83/x
  3. Step 3: Cross multiply
    209,703.21x = 289,393.73 × 114,209.83
  4. Step 4: Simplify right side
    209,703.21x = 33,051,608,925.35
  5. Step 5: Solve for x
    x = 33,051,608,925.35/209,703.21
  6. Step 6: Final answer
    x = 157,611.37

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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.