Home / 209,493.18-289,098.15-113,998.23

Finding the Fourth Proportional to 209,493.18, 289,098.15 and 113,998.23

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Solution

The fourth proportional to 209,493.18, 289,098.15 and 113,998.23 is: 157,316.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,493.18 : 289,098.15 = 113,998.23 : x
  2. Step 2: Convert to fraction form
    209,493.18/289,098.15 = 113,998.23/x
  3. Step 3: Cross multiply
    209,493.18x = 289,098.15 × 113,998.23
  4. Step 4: Simplify right side
    209,493.18x = 32,956,677,396.27
  5. Step 5: Solve for x
    x = 32,956,677,396.27/209,493.18
  6. Step 6: Final answer
    x = 157,316.23

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Double scale
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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.