Home / 209,495.30-289,103.58-113,999.94

Finding the Fourth Proportional to 209,495.30, 289,103.58 and 113,999.94

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Solution

The fourth proportional to 209,495.30, 289,103.58 and 113,999.94 is: 157,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,495.30 : 289,103.58 = 113,999.94 : x
  2. Step 2: Convert to fraction form
    209,495.30/289,103.58 = 113,999.94/x
  3. Step 3: Cross multiply
    209,495.30x = 289,103.58 × 113,999.94
  4. Step 4: Simplify right side
    209,495.30x = 32,957,790,773.79
  5. Step 5: Solve for x
    x = 32,957,790,773.79/209,495.30
  6. Step 6: Final answer
    x = 157,319.96

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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.