Home / 188,115.21-282,182.09-75,780.27

Finding the Fourth Proportional to 188,115.21, 282,182.09 and 75,780.27

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Solution

The fourth proportional to 188,115.21, 282,182.09 and 75,780.27 is: 113,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,115.21 : 282,182.09 = 75,780.27 : x
  2. Step 2: Convert to fraction form
    188,115.21/282,182.09 = 75,780.27/x
  3. Step 3: Cross multiply
    188,115.21x = 282,182.09 × 75,780.27
  4. Step 4: Simplify right side
    188,115.21x = 21,383,834,590.46
  5. Step 5: Solve for x
    x = 21,383,834,590.46/188,115.21
  6. Step 6: Final answer
    x = 113,674.14

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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.