Home / 214,631.32-321,815.76-102,345.88

Finding the Fourth Proportional to 214,631.32, 321,815.76 and 102,345.88

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Solution

The fourth proportional to 214,631.32, 321,815.76 and 102,345.88 is: 153,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,631.32 : 321,815.76 = 102,345.88 : x
  2. Step 2: Convert to fraction form
    214,631.32/321,815.76 = 102,345.88/x
  3. Step 3: Cross multiply
    214,631.32x = 321,815.76 × 102,345.88
  4. Step 4: Simplify right side
    214,631.32x = 32,936,517,155.07
  5. Step 5: Solve for x
    x = 32,936,517,155.07/214,631.32
  6. Step 6: Final answer
    x = 153,456.25

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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.