Home / 92,121.48-137,463.78-82,192.52

Finding the Fourth Proportional to 92,121.48, 137,463.78 and 82,192.52

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Solution

The fourth proportional to 92,121.48, 137,463.78 and 82,192.52 is: 122,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,121.48 : 137,463.78 = 82,192.52 : x
  2. Step 2: Convert to fraction form
    92,121.48/137,463.78 = 82,192.52/x
  3. Step 3: Cross multiply
    92,121.48x = 137,463.78 × 82,192.52
  4. Step 4: Simplify right side
    92,121.48x = 11,298,494,486.93
  5. Step 5: Solve for x
    x = 11,298,494,486.93/92,121.48
  6. Step 6: Final answer
    x = 122,647.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.