Home / 82,153.07-123,198.60-28,828.53

Finding the Fourth Proportional to 82,153.07, 123,198.60 and 28,828.53

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Solution

The fourth proportional to 82,153.07, 123,198.60 and 28,828.53 is: 43,231.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,153.07 : 123,198.60 = 28,828.53 : x
  2. Step 2: Convert to fraction form
    82,153.07/123,198.60 = 28,828.53/x
  3. Step 3: Cross multiply
    82,153.07x = 123,198.60 × 28,828.53
  4. Step 4: Simplify right side
    82,153.07x = 3,551,634,536.06
  5. Step 5: Solve for x
    x = 3,551,634,536.06/82,153.07
  6. Step 6: Final answer
    x = 43,231.92

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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.