Home / 208,011.40-311,734.41-87,968.59

Finding the Fourth Proportional to 208,011.40, 311,734.41 and 87,968.59

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Solution

The fourth proportional to 208,011.40, 311,734.41 and 87,968.59 is: 131,833.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,011.40 : 311,734.41 = 87,968.59 : x
  2. Step 2: Convert to fraction form
    208,011.40/311,734.41 = 87,968.59/x
  3. Step 3: Cross multiply
    208,011.40x = 311,734.41 × 87,968.59
  4. Step 4: Simplify right side
    208,011.40x = 27,422,836,502.18
  5. Step 5: Solve for x
    x = 27,422,836,502.18/208,011.40
  6. Step 6: Final answer
    x = 131,833.33

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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.