Home / 214,741.76-321,970.47-102,439.31

Finding the Fourth Proportional to 214,741.76, 321,970.47 and 102,439.31

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Solution

The fourth proportional to 214,741.76, 321,970.47 and 102,439.31 is: 153,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,741.76 : 321,970.47 = 102,439.31 : x
  2. Step 2: Convert to fraction form
    214,741.76/321,970.47 = 102,439.31/x
  3. Step 3: Cross multiply
    214,741.76x = 321,970.47 × 102,439.31
  4. Step 4: Simplify right side
    214,741.76x = 32,982,431,986.83
  5. Step 5: Solve for x
    x = 32,982,431,986.83/214,741.76
  6. Step 6: Final answer
    x = 153,591.14

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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.