Home / 231,509.25-319,523.72-136,015.92

Finding the Fourth Proportional to 231,509.25, 319,523.72 and 136,015.92

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Solution

The fourth proportional to 231,509.25, 319,523.72 and 136,015.92 is: 187,726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,509.25 : 319,523.72 = 136,015.92 : x
  2. Step 2: Convert to fraction form
    231,509.25/319,523.72 = 136,015.92/x
  3. Step 3: Cross multiply
    231,509.25x = 319,523.72 × 136,015.92
  4. Step 4: Simplify right side
    231,509.25x = 43,460,312,057.54
  5. Step 5: Solve for x
    x = 43,460,312,057.54/231,509.25
  6. Step 6: Final answer
    x = 187,726.03

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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.