Home / 214,520.40-321,676.92-125,802.72

Finding the Fourth Proportional to 214,520.40, 321,676.92 and 125,802.72

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Solution

The fourth proportional to 214,520.40, 321,676.92 and 125,802.72 is: 188,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,520.40 : 321,676.92 = 125,802.72 : x
  2. Step 2: Convert to fraction form
    214,520.40/321,676.92 = 125,802.72/x
  3. Step 3: Cross multiply
    214,520.40x = 321,676.92 × 125,802.72
  4. Step 4: Simplify right side
    214,520.40x = 40,467,831,497.22
  5. Step 5: Solve for x
    x = 40,467,831,497.22/214,520.40
  6. Step 6: Final answer
    x = 188,643.28

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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.