Home / 135,819.09-187,452.54-75,409.29

Finding the Fourth Proportional to 135,819.09, 187,452.54 and 75,409.29

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Solution

The fourth proportional to 135,819.09, 187,452.54 and 75,409.29 is: 104,077.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,819.09 : 187,452.54 = 75,409.29 : x
  2. Step 2: Convert to fraction form
    135,819.09/187,452.54 = 75,409.29/x
  3. Step 3: Cross multiply
    135,819.09x = 187,452.54 × 75,409.29
  4. Step 4: Simplify right side
    135,819.09x = 14,135,662,950.10
  5. Step 5: Solve for x
    x = 14,135,662,950.10/135,819.09
  6. Step 6: Final answer
    x = 104,077.14

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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.