Home / 129,954.82-179,348.07-103,317.16

Finding the Fourth Proportional to 129,954.82, 179,348.07 and 103,317.16

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Solution

The fourth proportional to 129,954.82, 179,348.07 and 103,317.16 is: 142,585.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,954.82 : 179,348.07 = 103,317.16 : x
  2. Step 2: Convert to fraction form
    129,954.82/179,348.07 = 103,317.16/x
  3. Step 3: Cross multiply
    129,954.82x = 179,348.07 × 103,317.16
  4. Step 4: Simplify right side
    129,954.82x = 18,529,733,243.88
  5. Step 5: Solve for x
    x = 18,529,733,243.88/129,954.82
  6. Step 6: Final answer
    x = 142,585.96

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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.