Home / 208,811.60-313,390.20-96,664.40

Finding the Fourth Proportional to 208,811.60, 313,390.20 and 96,664.40

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Solution

The fourth proportional to 208,811.60, 313,390.20 and 96,664.40 is: 145,076.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,811.60 : 313,390.20 = 96,664.40 : x
  2. Step 2: Convert to fraction form
    208,811.60/313,390.20 = 96,664.40/x
  3. Step 3: Cross multiply
    208,811.60x = 313,390.20 × 96,664.40
  4. Step 4: Simplify right side
    208,811.60x = 30,293,675,648.88
  5. Step 5: Solve for x
    x = 30,293,675,648.88/208,811.60
  6. Step 6: Final answer
    x = 145,076.59

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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.