Home / 190,563.95-285,753.31-57,419.39

Finding the Fourth Proportional to 190,563.95, 285,753.31 and 57,419.39

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Solution

The fourth proportional to 190,563.95, 285,753.31 and 57,419.39 is: 86,101.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,563.95 : 285,753.31 = 57,419.39 : x
  2. Step 2: Convert to fraction form
    190,563.95/285,753.31 = 57,419.39/x
  3. Step 3: Cross multiply
    190,563.95x = 285,753.31 × 57,419.39
  4. Step 4: Simplify right side
    190,563.95x = 16,407,780,750.68
  5. Step 5: Solve for x
    x = 16,407,780,750.68/190,563.95
  6. Step 6: Final answer
    x = 86,101.18

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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.