Home / 129,821.16-179,161.56-73,231.32

Finding the Fourth Proportional to 129,821.16, 179,161.56 and 73,231.32

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Solution

The fourth proportional to 129,821.16, 179,161.56 and 73,231.32 is: 101,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,821.16 : 179,161.56 = 73,231.32 : x
  2. Step 2: Convert to fraction form
    129,821.16/179,161.56 = 73,231.32/x
  3. Step 3: Cross multiply
    129,821.16x = 179,161.56 × 73,231.32
  4. Step 4: Simplify right side
    129,821.16x = 13,120,237,532.06
  5. Step 5: Solve for x
    x = 13,120,237,532.06/129,821.16
  6. Step 6: Final answer
    x = 101,063.94

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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.