Home / 155,751.03-214,936.50-84,131.05

Finding the Fourth Proportional to 155,751.03, 214,936.50 and 84,131.05

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Solution

The fourth proportional to 155,751.03, 214,936.50 and 84,131.05 is: 116,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,751.03 : 214,936.50 = 84,131.05 : x
  2. Step 2: Convert to fraction form
    155,751.03/214,936.50 = 84,131.05/x
  3. Step 3: Cross multiply
    155,751.03x = 214,936.50 × 84,131.05
  4. Step 4: Simplify right side
    155,751.03x = 18,082,833,428.33
  5. Step 5: Solve for x
    x = 18,082,833,428.33/155,751.03
  6. Step 6: Final answer
    x = 116,100.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.