Home / 214,272.28-321,455.42-81,153.52

Finding the Fourth Proportional to 214,272.28, 321,455.42 and 81,153.52

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Solution

The fourth proportional to 214,272.28, 321,455.42 and 81,153.52 is: 121,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,272.28 : 321,455.42 = 81,153.52 : x
  2. Step 2: Convert to fraction form
    214,272.28/321,455.42 = 81,153.52/x
  3. Step 3: Cross multiply
    214,272.28x = 321,455.42 × 81,153.52
  4. Step 4: Simplify right side
    214,272.28x = 26,087,238,856.08
  5. Step 5: Solve for x
    x = 26,087,238,856.08/214,272.28
  6. Step 6: Final answer
    x = 121,748.08

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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.