Home / 131,611.44-181,625.16-121,565.88

Finding the Fourth Proportional to 131,611.44, 181,625.16 and 121,565.88

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Solution

The fourth proportional to 131,611.44, 181,625.16 and 121,565.88 is: 167,762.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,611.44 : 181,625.16 = 121,565.88 : x
  2. Step 2: Convert to fraction form
    131,611.44/181,625.16 = 121,565.88/x
  3. Step 3: Cross multiply
    131,611.44x = 181,625.16 × 121,565.88
  4. Step 4: Simplify right side
    131,611.44x = 22,079,422,405.54
  5. Step 5: Solve for x
    x = 22,079,422,405.54/131,611.44
  6. Step 6: Final answer
    x = 167,762.18

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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.