Home / 190,628.39-285,944.64-57,509.81

Finding the Fourth Proportional to 190,628.39, 285,944.64 and 57,509.81

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Solution

The fourth proportional to 190,628.39, 285,944.64 and 57,509.81 is: 86,265.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,628.39 : 285,944.64 = 57,509.81 : x
  2. Step 2: Convert to fraction form
    190,628.39/285,944.64 = 57,509.81/x
  3. Step 3: Cross multiply
    190,628.39x = 285,944.64 × 57,509.81
  4. Step 4: Simplify right side
    190,628.39x = 16,444,620,487.20
  5. Step 5: Solve for x
    x = 16,444,620,487.20/190,628.39
  6. Step 6: Final answer
    x = 86,265.33

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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.