Home / 231,628.08-319,647.96-131,023.92

Finding the Fourth Proportional to 231,628.08, 319,647.96 and 131,023.92

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Solution

The fourth proportional to 231,628.08, 319,647.96 and 131,023.92 is: 180,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,628.08 : 319,647.96 = 131,023.92 : x
  2. Step 2: Convert to fraction form
    231,628.08/319,647.96 = 131,023.92/x
  3. Step 3: Cross multiply
    231,628.08x = 319,647.96 × 131,023.92
  4. Step 4: Simplify right side
    231,628.08x = 41,881,528,739.20
  5. Step 5: Solve for x
    x = 41,881,528,739.20/231,628.08
  6. Step 6: Final answer
    x = 180,813.69

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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.