Home / 215,982.21-298,018.54-125,317.39

Finding the Fourth Proportional to 215,982.21, 298,018.54 and 125,317.39

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Solution

The fourth proportional to 215,982.21, 298,018.54 and 125,317.39 is: 172,916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,982.21 : 298,018.54 = 125,317.39 : x
  2. Step 2: Convert to fraction form
    215,982.21/298,018.54 = 125,317.39/x
  3. Step 3: Cross multiply
    215,982.21x = 298,018.54 × 125,317.39
  4. Step 4: Simplify right side
    215,982.21x = 37,346,905,604.41
  5. Step 5: Solve for x
    x = 37,346,905,604.41/215,982.21
  6. Step 6: Final answer
    x = 172,916.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.