Home / 208,490.04-312,616.54-82,061.75

Finding the Fourth Proportional to 208,490.04, 312,616.54 and 82,061.75

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Solution

The fourth proportional to 208,490.04, 312,616.54 and 82,061.75 is: 123,045.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,490.04 : 312,616.54 = 82,061.75 : x
  2. Step 2: Convert to fraction form
    208,490.04/312,616.54 = 82,061.75/x
  3. Step 3: Cross multiply
    208,490.04x = 312,616.54 × 82,061.75
  4. Step 4: Simplify right side
    208,490.04x = 25,653,858,377.95
  5. Step 5: Solve for x
    x = 25,653,858,377.95/208,490.04
  6. Step 6: Final answer
    x = 123,045.97

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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.