Home / 129,769.98-179,079.03-73,186.62

Finding the Fourth Proportional to 129,769.98, 179,079.03 and 73,186.62

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Solution

The fourth proportional to 129,769.98, 179,079.03 and 73,186.62 is: 100,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,769.98 : 179,079.03 = 73,186.62 : x
  2. Step 2: Convert to fraction form
    129,769.98/179,079.03 = 73,186.62/x
  3. Step 3: Cross multiply
    129,769.98x = 179,079.03 × 73,186.62
  4. Step 4: Simplify right side
    129,769.98x = 13,106,188,918.58
  5. Step 5: Solve for x
    x = 13,106,188,918.58/129,769.98
  6. Step 6: Final answer
    x = 100,995.54

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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.