Home / 215,916.86-323,916.81-82,786.74

Finding the Fourth Proportional to 215,916.86, 323,916.81 and 82,786.74

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Solution

The fourth proportional to 215,916.86, 323,916.81 and 82,786.74 is: 124,196.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,916.86 : 323,916.81 = 82,786.74 : x
  2. Step 2: Convert to fraction form
    215,916.86/323,916.81 = 82,786.74/x
  3. Step 3: Cross multiply
    215,916.86x = 323,916.81 × 82,786.74
  4. Step 4: Simplify right side
    215,916.86x = 26,816,015,205.96
  5. Step 5: Solve for x
    x = 26,816,015,205.96/215,916.86
  6. Step 6: Final answer
    x = 124,196.02

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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.