Home / 214,631.12-321,948.90-64,872.65

Finding the Fourth Proportional to 214,631.12, 321,948.90 and 64,872.65

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Solution

The fourth proportional to 214,631.12, 321,948.90 and 64,872.65 is: 97,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,631.12 : 321,948.90 = 64,872.65 : x
  2. Step 2: Convert to fraction form
    214,631.12/321,948.90 = 64,872.65/x
  3. Step 3: Cross multiply
    214,631.12x = 321,948.90 × 64,872.65
  4. Step 4: Simplify right side
    214,631.12x = 20,885,676,697.84
  5. Step 5: Solve for x
    x = 20,885,676,697.84/214,631.12
  6. Step 6: Final answer
    x = 97,309.64

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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.