Home / 214,569.74-321,912.69-64,814.90

Finding the Fourth Proportional to 214,569.74, 321,912.69 and 64,814.90

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Solution

The fourth proportional to 214,569.74, 321,912.69 and 64,814.90 is: 97,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,569.74 : 321,912.69 = 64,814.90 : x
  2. Step 2: Convert to fraction form
    214,569.74/321,912.69 = 64,814.90/x
  3. Step 3: Cross multiply
    214,569.74x = 321,912.69 × 64,814.90
  4. Step 4: Simplify right side
    214,569.74x = 20,864,738,811.08
  5. Step 5: Solve for x
    x = 20,864,738,811.08/214,569.74
  6. Step 6: Final answer
    x = 97,239.89

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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.