Home / 215,078.08-322,609.83-81,953.56

Finding the Fourth Proportional to 215,078.08, 322,609.83 and 81,953.56

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Solution

The fourth proportional to 215,078.08, 322,609.83 and 81,953.56 is: 122,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,078.08 : 322,609.83 = 81,953.56 : x
  2. Step 2: Convert to fraction form
    215,078.08/322,609.83 = 81,953.56/x
  3. Step 3: Cross multiply
    215,078.08x = 322,609.83 × 81,953.56
  4. Step 4: Simplify right side
    215,078.08x = 26,439,024,059.49
  5. Step 5: Solve for x
    x = 26,439,024,059.49/215,078.08
  6. Step 6: Final answer
    x = 122,927.56

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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.