Home / 104,845.03-157,136.39-82,570.43

Finding the Fourth Proportional to 104,845.03, 157,136.39 and 82,570.43

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Solution

The fourth proportional to 104,845.03, 157,136.39 and 82,570.43 is: 123,752.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,845.03 : 157,136.39 = 82,570.43 : x
  2. Step 2: Convert to fraction form
    104,845.03/157,136.39 = 82,570.43/x
  3. Step 3: Cross multiply
    104,845.03x = 157,136.39 × 82,570.43
  4. Step 4: Simplify right side
    104,845.03x = 12,974,818,878.10
  5. Step 5: Solve for x
    x = 12,974,818,878.10/104,845.03
  6. Step 6: Final answer
    x = 123,752.36

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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.