Home / 215,664.40-323,788.20-136,932.40

Finding the Fourth Proportional to 215,664.40, 323,788.20 and 136,932.40

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Solution

The fourth proportional to 215,664.40, 323,788.20 and 136,932.40 is: 205,583.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,664.40 : 323,788.20 = 136,932.40 : x
  2. Step 2: Convert to fraction form
    215,664.40/323,788.20 = 136,932.40/x
  3. Step 3: Cross multiply
    215,664.40x = 323,788.20 × 136,932.40
  4. Step 4: Simplify right side
    215,664.40x = 44,337,095,317.68
  5. Step 5: Solve for x
    x = 44,337,095,317.68/215,664.40
  6. Step 6: Final answer
    x = 205,583.75

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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.