Home / 129,804.06-179,129.61-73,215.48

Finding the Fourth Proportional to 129,804.06, 179,129.61 and 73,215.48

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Solution

The fourth proportional to 129,804.06, 179,129.61 and 73,215.48 is: 101,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,804.06 : 179,129.61 = 73,215.48 : x
  2. Step 2: Convert to fraction form
    129,804.06/179,129.61 = 73,215.48/x
  3. Step 3: Cross multiply
    129,804.06x = 179,129.61 × 73,215.48
  4. Step 4: Simplify right side
    129,804.06x = 13,115,060,378.36
  5. Step 5: Solve for x
    x = 13,115,060,378.36/129,804.06
  6. Step 6: Final answer
    x = 101,037.37

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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.