Home / 231,975.48-320,052.96-129,986.76

Finding the Fourth Proportional to 231,975.48, 320,052.96 and 129,986.76

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Solution

The fourth proportional to 231,975.48, 320,052.96 and 129,986.76 is: 179,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,975.48 : 320,052.96 = 129,986.76 : x
  2. Step 2: Convert to fraction form
    231,975.48/320,052.96 = 129,986.76/x
  3. Step 3: Cross multiply
    231,975.48x = 320,052.96 × 129,986.76
  4. Step 4: Simplify right side
    231,975.48x = 41,602,647,298.81
  5. Step 5: Solve for x
    x = 41,602,647,298.81/231,975.48
  6. Step 6: Final answer
    x = 179,340.71

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1.5x scale

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.