Home / 208,983.70-313,475.55-68,724.10

Finding the Fourth Proportional to 208,983.70, 313,475.55 and 68,724.10

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Solution

The fourth proportional to 208,983.70, 313,475.55 and 68,724.10 is: 103,086.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,983.70 : 313,475.55 = 68,724.10 : x
  2. Step 2: Convert to fraction form
    208,983.70/313,475.55 = 68,724.10/x
  3. Step 3: Cross multiply
    208,983.70x = 313,475.55 × 68,724.10
  4. Step 4: Simplify right side
    208,983.70x = 21,543,325,045.76
  5. Step 5: Solve for x
    x = 21,543,325,045.76/208,983.70
  6. Step 6: Final answer
    x = 103,086.15

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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.