Home / 208,113.17-311,982.42-74,899.76

Finding the Fourth Proportional to 208,113.17, 311,982.42 and 74,899.76

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Solution

The fourth proportional to 208,113.17, 311,982.42 and 74,899.76 is: 112,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,113.17 : 311,982.42 = 74,899.76 : x
  2. Step 2: Convert to fraction form
    208,113.17/311,982.42 = 74,899.76/x
  3. Step 3: Cross multiply
    208,113.17x = 311,982.42 × 74,899.76
  4. Step 4: Simplify right side
    208,113.17x = 23,367,408,382.22
  5. Step 5: Solve for x
    x = 23,367,408,382.22/208,113.17
  6. Step 6: Final answer
    x = 112,282.22

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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.