Home / 193,185.60-289,922.40-99,643.20

Finding the Fourth Proportional to 193,185.60, 289,922.40 and 99,643.20

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Solution

The fourth proportional to 193,185.60, 289,922.40 and 99,643.20 is: 149,539.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,185.60 : 289,922.40 = 99,643.20 : x
  2. Step 2: Convert to fraction form
    193,185.60/289,922.40 = 99,643.20/x
  3. Step 3: Cross multiply
    193,185.60x = 289,922.40 × 99,643.20
  4. Step 4: Simplify right side
    193,185.60x = 28,888,795,687.68
  5. Step 5: Solve for x
    x = 28,888,795,687.68/193,185.60
  6. Step 6: Final answer
    x = 149,539.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.