Home / 188,836.20-282,671.10-109,715.40

Finding the Fourth Proportional to 188,836.20, 282,671.10 and 109,715.40

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Solution

The fourth proportional to 188,836.20, 282,671.10 and 109,715.40 is: 164,234.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,836.20 : 282,671.10 = 109,715.40 : x
  2. Step 2: Convert to fraction form
    188,836.20/282,671.10 = 109,715.40/x
  3. Step 3: Cross multiply
    188,836.20x = 282,671.10 × 109,715.40
  4. Step 4: Simplify right side
    188,836.20x = 31,013,372,804.94
  5. Step 5: Solve for x
    x = 31,013,372,804.94/188,836.20
  6. Step 6: Final answer
    x = 164,234.26

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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.