Home / 214,266.78-321,427.62-72,051.12

Finding the Fourth Proportional to 214,266.78, 321,427.62 and 72,051.12

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Solution

The fourth proportional to 214,266.78, 321,427.62 and 72,051.12 is: 108,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,266.78 : 321,427.62 = 72,051.12 : x
  2. Step 2: Convert to fraction form
    214,266.78/321,427.62 = 72,051.12/x
  3. Step 3: Cross multiply
    214,266.78x = 321,427.62 × 72,051.12
  4. Step 4: Simplify right side
    214,266.78x = 23,159,220,019.93
  5. Step 5: Solve for x
    x = 23,159,220,019.93/214,266.78
  6. Step 6: Final answer
    x = 108,085.91

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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.