Home / 212,457.14-318,999.79-141,819.87

Finding the Fourth Proportional to 212,457.14, 318,999.79 and 141,819.87

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Solution

The fourth proportional to 212,457.14, 318,999.79 and 141,819.87 is: 212,939.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,457.14 : 318,999.79 = 141,819.87 : x
  2. Step 2: Convert to fraction form
    212,457.14/318,999.79 = 141,819.87/x
  3. Step 3: Cross multiply
    212,457.14x = 318,999.79 × 141,819.87
  4. Step 4: Simplify right side
    212,457.14x = 45,240,510,121.35
  5. Step 5: Solve for x
    x = 45,240,510,121.35/212,457.14
  6. Step 6: Final answer
    x = 212,939.47

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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.