Home / 151,916.87-209,627.41-83,929.79

Finding the Fourth Proportional to 151,916.87, 209,627.41 and 83,929.79

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Solution

The fourth proportional to 151,916.87, 209,627.41 and 83,929.79 is: 115,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,916.87 : 209,627.41 = 83,929.79 : x
  2. Step 2: Convert to fraction form
    151,916.87/209,627.41 = 83,929.79/x
  3. Step 3: Cross multiply
    151,916.87x = 209,627.41 × 83,929.79
  4. Step 4: Simplify right side
    151,916.87x = 17,593,984,289.72
  5. Step 5: Solve for x
    x = 17,593,984,289.72/151,916.87
  6. Step 6: Final answer
    x = 115,813.24

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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.