Home / 214,136.40-321,080.10-81,026.94

Finding the Fourth Proportional to 214,136.40, 321,080.10 and 81,026.94

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Solution

The fourth proportional to 214,136.40, 321,080.10 and 81,026.94 is: 121,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,136.40 : 321,080.10 = 81,026.94 : x
  2. Step 2: Convert to fraction form
    214,136.40/321,080.10 = 81,026.94/x
  3. Step 3: Cross multiply
    214,136.40x = 321,080.10 × 81,026.94
  4. Step 4: Simplify right side
    214,136.40x = 26,016,138,898.09
  5. Step 5: Solve for x
    x = 26,016,138,898.09/214,136.40
  6. Step 6: Final answer
    x = 121,493.30

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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.