Home / 217,071.37-325,495.99-90,677.12

Finding the Fourth Proportional to 217,071.37, 325,495.99 and 90,677.12

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Solution

The fourth proportional to 217,071.37, 325,495.99 and 90,677.12 is: 135,969.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,071.37 : 325,495.99 = 90,677.12 : x
  2. Step 2: Convert to fraction form
    217,071.37/325,495.99 = 90,677.12/x
  3. Step 3: Cross multiply
    217,071.37x = 325,495.99 × 90,677.12
  4. Step 4: Simplify right side
    217,071.37x = 29,515,039,516.56
  5. Step 5: Solve for x
    x = 29,515,039,516.56/217,071.37
  6. Step 6: Final answer
    x = 135,969.29

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1.5x scale

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.