Home / 205,774.87-283,980.36-115,125.43

Finding the Fourth Proportional to 205,774.87, 283,980.36 and 115,125.43

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Solution

The fourth proportional to 205,774.87, 283,980.36 and 115,125.43 is: 158,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,774.87 : 283,980.36 = 115,125.43 : x
  2. Step 2: Convert to fraction form
    205,774.87/283,980.36 = 115,125.43/x
  3. Step 3: Cross multiply
    205,774.87x = 283,980.36 × 115,125.43
  4. Step 4: Simplify right side
    205,774.87x = 32,693,361,056.55
  5. Step 5: Solve for x
    x = 32,693,361,056.55/205,774.87
  6. Step 6: Final answer
    x = 158,879.27

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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.