Home / 215,864.84-323,612.58-82,840.56

Finding the Fourth Proportional to 215,864.84, 323,612.58 and 82,840.56

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Solution

The fourth proportional to 215,864.84, 323,612.58 and 82,840.56 is: 124,189.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,864.84 : 323,612.58 = 82,840.56 : x
  2. Step 2: Convert to fraction form
    215,864.84/323,612.58 = 82,840.56/x
  3. Step 3: Cross multiply
    215,864.84x = 323,612.58 × 82,840.56
  4. Step 4: Simplify right side
    215,864.84x = 26,808,247,350.24
  5. Step 5: Solve for x
    x = 26,808,247,350.24/215,864.84
  6. Step 6: Final answer
    x = 124,189.97

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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.