Home / 231,966.72-320,103.36-131,365.44

Finding the Fourth Proportional to 231,966.72, 320,103.36 and 131,365.44

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Solution

The fourth proportional to 231,966.72, 320,103.36 and 131,365.44 is: 181,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,966.72 : 320,103.36 = 131,365.44 : x
  2. Step 2: Convert to fraction form
    231,966.72/320,103.36 = 131,365.44/x
  3. Step 3: Cross multiply
    231,966.72x = 320,103.36 × 131,365.44
  4. Step 4: Simplify right side
    231,966.72x = 42,050,518,731.88
  5. Step 5: Solve for x
    x = 42,050,518,731.88/231,966.72
  6. Step 6: Final answer
    x = 181,278.24

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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.