Home / 214,511.24-321,851.50-81,426.82

Finding the Fourth Proportional to 214,511.24, 321,851.50 and 81,426.82

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Solution

The fourth proportional to 214,511.24, 321,851.50 and 81,426.82 is: 122,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,511.24 : 321,851.50 = 81,426.82 : x
  2. Step 2: Convert to fraction form
    214,511.24/321,851.50 = 81,426.82/x
  3. Step 3: Cross multiply
    214,511.24x = 321,851.50 × 81,426.82
  4. Step 4: Simplify right side
    214,511.24x = 26,207,342,547.97
  5. Step 5: Solve for x
    x = 26,207,342,547.97/214,511.24
  6. Step 6: Final answer
    x = 122,172.35

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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.