Home / 217,495.49-326,370.25-91,124.94

Finding the Fourth Proportional to 217,495.49, 326,370.25 and 91,124.94

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Solution

The fourth proportional to 217,495.49, 326,370.25 and 91,124.94 is: 136,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,495.49 : 326,370.25 = 91,124.94 : x
  2. Step 2: Convert to fraction form
    217,495.49/326,370.25 = 91,124.94/x
  3. Step 3: Cross multiply
    217,495.49x = 326,370.25 × 91,124.94
  4. Step 4: Simplify right side
    217,495.49x = 29,740,469,449.04
  5. Step 5: Solve for x
    x = 29,740,469,449.04/217,495.49
  6. Step 6: Final answer
    x = 136,740.63

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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.