Home / 252,720.38-378,857.19-103,085.84

Finding the Fourth Proportional to 252,720.38, 378,857.19 and 103,085.84

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Solution

The fourth proportional to 252,720.38, 378,857.19 and 103,085.84 is: 154,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,720.38 : 378,857.19 = 103,085.84 : x
  2. Step 2: Convert to fraction form
    252,720.38/378,857.19 = 103,085.84/x
  3. Step 3: Cross multiply
    252,720.38x = 378,857.19 × 103,085.84
  4. Step 4: Simplify right side
    252,720.38x = 39,054,811,671.19
  5. Step 5: Solve for x
    x = 39,054,811,671.19/252,720.38
  6. Step 6: Final answer
    x = 154,537.64

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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.