Home / 152,787.21-228,916.22-82,714.65

Finding the Fourth Proportional to 152,787.21, 228,916.22 and 82,714.65

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Solution

The fourth proportional to 152,787.21, 228,916.22 and 82,714.65 is: 123,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,787.21 : 228,916.22 = 82,714.65 : x
  2. Step 2: Convert to fraction form
    152,787.21/228,916.22 = 82,714.65/x
  3. Step 3: Cross multiply
    152,787.21x = 228,916.22 × 82,714.65
  4. Step 4: Simplify right side
    152,787.21x = 18,934,724,603.05
  5. Step 5: Solve for x
    x = 18,934,724,603.05/152,787.21
  6. Step 6: Final answer
    x = 123,928.73

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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.