Home / 214,509.38-321,848.80-81,424.96

Finding the Fourth Proportional to 214,509.38, 321,848.80 and 81,424.96

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Solution

The fourth proportional to 214,509.38, 321,848.80 and 81,424.96 is: 122,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,509.38 : 321,848.80 = 81,424.96 : x
  2. Step 2: Convert to fraction form
    214,509.38/321,848.80 = 81,424.96/x
  3. Step 3: Cross multiply
    214,509.38x = 321,848.80 × 81,424.96
  4. Step 4: Simplify right side
    214,509.38x = 26,206,524,657.86
  5. Step 5: Solve for x
    x = 26,206,524,657.86/214,509.38
  6. Step 6: Final answer
    x = 122,169.60

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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.