Home / 114,828.84-172,139.46-40,939.56

Finding the Fourth Proportional to 114,828.84, 172,139.46 and 40,939.56

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Solution

The fourth proportional to 114,828.84, 172,139.46 and 40,939.56 is: 61,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,828.84 : 172,139.46 = 40,939.56 : x
  2. Step 2: Convert to fraction form
    114,828.84/172,139.46 = 40,939.56/x
  3. Step 3: Cross multiply
    114,828.84x = 172,139.46 × 40,939.56
  4. Step 4: Simplify right side
    114,828.84x = 7,047,313,751.04
  5. Step 5: Solve for x
    x = 7,047,313,751.04/114,828.84
  6. Step 6: Final answer
    x = 61,372.33

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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.