Home / 217,705.90-326,309.09-91,322.77

Finding the Fourth Proportional to 217,705.90, 326,309.09 and 91,322.77

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Solution

The fourth proportional to 217,705.90, 326,309.09 and 91,322.77 is: 136,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,705.90 : 326,309.09 = 91,322.77 : x
  2. Step 2: Convert to fraction form
    217,705.90/326,309.09 = 91,322.77/x
  3. Step 3: Cross multiply
    217,705.90x = 326,309.09 × 91,322.77
  4. Step 4: Simplify right side
    217,705.90x = 29,799,449,974.98
  5. Step 5: Solve for x
    x = 29,799,449,974.98/217,705.90
  6. Step 6: Final answer
    x = 136,879.39

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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.