Home / 136,528.88-188,416.31-76,099.94

Finding the Fourth Proportional to 136,528.88, 188,416.31 and 76,099.94

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Solution

The fourth proportional to 136,528.88, 188,416.31 and 76,099.94 is: 105,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,528.88 : 188,416.31 = 76,099.94 : x
  2. Step 2: Convert to fraction form
    136,528.88/188,416.31 = 76,099.94/x
  3. Step 3: Cross multiply
    136,528.88x = 188,416.31 × 76,099.94
  4. Step 4: Simplify right side
    136,528.88x = 14,338,469,698.06
  5. Step 5: Solve for x
    x = 14,338,469,698.06/136,528.88
  6. Step 6: Final answer
    x = 105,021.52

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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.