Home / 129,611.63-194,493.99-54,726.93

Finding the Fourth Proportional to 129,611.63, 194,493.99 and 54,726.93

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Solution

The fourth proportional to 129,611.63, 194,493.99 and 54,726.93 is: 82,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,611.63 : 194,493.99 = 54,726.93 : x
  2. Step 2: Convert to fraction form
    129,611.63/194,493.99 = 54,726.93/x
  3. Step 3: Cross multiply
    129,611.63x = 194,493.99 × 54,726.93
  4. Step 4: Simplify right side
    129,611.63x = 10,644,058,976.15
  5. Step 5: Solve for x
    x = 10,644,058,976.15/129,611.63
  6. Step 6: Final answer
    x = 82,122.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.