Home / 205,856.90-284,028.52-118,620.54

Finding the Fourth Proportional to 205,856.90, 284,028.52 and 118,620.54

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Solution

The fourth proportional to 205,856.90, 284,028.52 and 118,620.54 is: 163,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,856.90 : 284,028.52 = 118,620.54 : x
  2. Step 2: Convert to fraction form
    205,856.90/284,028.52 = 118,620.54/x
  3. Step 3: Cross multiply
    205,856.90x = 284,028.52 × 118,620.54
  4. Step 4: Simplify right side
    205,856.90x = 33,691,616,417.80
  5. Step 5: Solve for x
    x = 33,691,616,417.80/205,856.90
  6. Step 6: Final answer
    x = 163,665.23

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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.