Home / 209,566.31-289,193.47-118,916.86

Finding the Fourth Proportional to 209,566.31, 289,193.47 and 118,916.86

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Solution

The fourth proportional to 209,566.31, 289,193.47 and 118,916.86 is: 164,100.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,566.31 : 289,193.47 = 118,916.86 : x
  2. Step 2: Convert to fraction form
    209,566.31/289,193.47 = 118,916.86/x
  3. Step 3: Cross multiply
    209,566.31x = 289,193.47 × 118,916.86
  4. Step 4: Simplify right side
    209,566.31x = 34,389,979,575.77
  5. Step 5: Solve for x
    x = 34,389,979,575.77/209,566.31
  6. Step 6: Final answer
    x = 164,100.71

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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.