Home / 214,020.63-321,034.59-80,963.55

Finding the Fourth Proportional to 214,020.63, 321,034.59 and 80,963.55

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Solution

The fourth proportional to 214,020.63, 321,034.59 and 80,963.55 is: 121,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,020.63 : 321,034.59 = 80,963.55 : x
  2. Step 2: Convert to fraction form
    214,020.63/321,034.59 = 80,963.55/x
  3. Step 3: Cross multiply
    214,020.63x = 321,034.59 × 80,963.55
  4. Step 4: Simplify right side
    214,020.63x = 25,992,100,079.19
  5. Step 5: Solve for x
    x = 25,992,100,079.19/214,020.63
  6. Step 6: Final answer
    x = 121,446.70

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1.5x scale

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.