Home / 132,668.09-183,072.71-75,308.57

Finding the Fourth Proportional to 132,668.09, 183,072.71 and 75,308.57

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Solution

The fourth proportional to 132,668.09, 183,072.71 and 75,308.57 is: 103,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,668.09 : 183,072.71 = 75,308.57 : x
  2. Step 2: Convert to fraction form
    132,668.09/183,072.71 = 75,308.57/x
  3. Step 3: Cross multiply
    132,668.09x = 183,072.71 × 75,308.57
  4. Step 4: Simplify right side
    132,668.09x = 13,786,943,619.58
  5. Step 5: Solve for x
    x = 13,786,943,619.58/132,668.09
  6. Step 6: Final answer
    x = 103,920.57

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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.