Home / 190,629.89-285,946.89-57,511.31

Finding the Fourth Proportional to 190,629.89, 285,946.89 and 57,511.31

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Solution

The fourth proportional to 190,629.89, 285,946.89 and 57,511.31 is: 86,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,629.89 : 285,946.89 = 57,511.31 : x
  2. Step 2: Convert to fraction form
    190,629.89/285,946.89 = 57,511.31/x
  3. Step 3: Cross multiply
    190,629.89x = 285,946.89 × 57,511.31
  4. Step 4: Simplify right side
    190,629.89x = 16,445,178,804.59
  5. Step 5: Solve for x
    x = 16,445,178,804.59/190,629.89
  6. Step 6: Final answer
    x = 86,267.58

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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.