Home / 214,612.74-321,792.75-81,502.47

Finding the Fourth Proportional to 214,612.74, 321,792.75 and 81,502.47

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Solution

The fourth proportional to 214,612.74, 321,792.75 and 81,502.47 is: 122,205.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,612.74 : 321,792.75 = 81,502.47 : x
  2. Step 2: Convert to fraction form
    214,612.74/321,792.75 = 81,502.47/x
  3. Step 3: Cross multiply
    214,612.74x = 321,792.75 × 81,502.47
  4. Step 4: Simplify right side
    214,612.74x = 26,226,903,953.09
  5. Step 5: Solve for x
    x = 26,226,903,953.09/214,612.74
  6. Step 6: Final answer
    x = 122,205.72

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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.