Home / 209,566.05-289,193.10-118,916.61

Finding the Fourth Proportional to 209,566.05, 289,193.10 and 118,916.61

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Solution

The fourth proportional to 209,566.05, 289,193.10 and 118,916.61 is: 164,100.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,566.05 : 289,193.10 = 118,916.61 : x
  2. Step 2: Convert to fraction form
    209,566.05/289,193.10 = 118,916.61/x
  3. Step 3: Cross multiply
    209,566.05x = 289,193.10 × 118,916.61
  4. Step 4: Simplify right side
    209,566.05x = 34,389,863,087.39
  5. Step 5: Solve for x
    x = 34,389,863,087.39/209,566.05
  6. Step 6: Final answer
    x = 164,100.35

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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.