Home / 119,958.21-179,896.37-86,579.13

Finding the Fourth Proportional to 119,958.21, 179,896.37 and 86,579.13

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Solution

The fourth proportional to 119,958.21, 179,896.37 and 86,579.13 is: 129,839.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,958.21 : 179,896.37 = 86,579.13 : x
  2. Step 2: Convert to fraction form
    119,958.21/179,896.37 = 86,579.13/x
  3. Step 3: Cross multiply
    119,958.21x = 179,896.37 × 86,579.13
  4. Step 4: Simplify right side
    119,958.21x = 15,575,270,771.86
  5. Step 5: Solve for x
    x = 15,575,270,771.86/119,958.21
  6. Step 6: Final answer
    x = 129,839.14

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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.