Home / 129,185.58-193,735.26-54,291.77

Finding the Fourth Proportional to 129,185.58, 193,735.26 and 54,291.77

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Solution

The fourth proportional to 129,185.58, 193,735.26 and 54,291.77 is: 81,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,185.58 : 193,735.26 = 54,291.77 : x
  2. Step 2: Convert to fraction form
    129,185.58/193,735.26 = 54,291.77/x
  3. Step 3: Cross multiply
    129,185.58x = 193,735.26 × 54,291.77
  4. Step 4: Simplify right side
    129,185.58x = 10,518,229,934.64
  5. Step 5: Solve for x
    x = 10,518,229,934.64/129,185.58
  6. Step 6: Final answer
    x = 81,419.53

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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.