Home / 211,529.81-317,316.60-71,299.37

Finding the Fourth Proportional to 211,529.81, 317,316.60 and 71,299.37

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Solution

The fourth proportional to 211,529.81, 317,316.60 and 71,299.37 is: 106,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,529.81 : 317,316.60 = 71,299.37 : x
  2. Step 2: Convert to fraction form
    211,529.81/317,316.60 = 71,299.37/x
  3. Step 3: Cross multiply
    211,529.81x = 317,316.60 × 71,299.37
  4. Step 4: Simplify right side
    211,529.81x = 22,624,473,670.54
  5. Step 5: Solve for x
    x = 22,624,473,670.54/211,529.81
  6. Step 6: Final answer
    x = 106,956.43

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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.