Home / 129,859.76-179,208.96-73,272.44

Finding the Fourth Proportional to 129,859.76, 179,208.96 and 73,272.44

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Solution

The fourth proportional to 129,859.76, 179,208.96 and 73,272.44 is: 101,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,859.76 : 179,208.96 = 73,272.44 : x
  2. Step 2: Convert to fraction form
    129,859.76/179,208.96 = 73,272.44/x
  3. Step 3: Cross multiply
    129,859.76x = 179,208.96 × 73,272.44
  4. Step 4: Simplify right side
    129,859.76x = 13,131,077,769.06
  5. Step 5: Solve for x
    x = 13,131,077,769.06/129,859.76
  6. Step 6: Final answer
    x = 101,117.37

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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.