Home / 214,263.55-321,398.57-81,108.06

Finding the Fourth Proportional to 214,263.55, 321,398.57 and 81,108.06

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Solution

The fourth proportional to 214,263.55, 321,398.57 and 81,108.06 is: 121,663.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,263.55 : 321,398.57 = 81,108.06 : x
  2. Step 2: Convert to fraction form
    214,263.55/321,398.57 = 81,108.06/x
  3. Step 3: Cross multiply
    214,263.55x = 321,398.57 × 81,108.06
  4. Step 4: Simplify right side
    214,263.55x = 26,068,012,486.94
  5. Step 5: Solve for x
    x = 26,068,012,486.94/214,263.55
  6. Step 6: Final answer
    x = 121,663.31

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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.