Home / 129,738.64-179,033.88-73,155.28

Finding the Fourth Proportional to 129,738.64, 179,033.88 and 73,155.28

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Solution

The fourth proportional to 129,738.64, 179,033.88 and 73,155.28 is: 100,951.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,738.64 : 179,033.88 = 73,155.28 : x
  2. Step 2: Convert to fraction form
    129,738.64/179,033.88 = 73,155.28/x
  3. Step 3: Cross multiply
    129,738.64x = 179,033.88 × 73,155.28
  4. Step 4: Simplify right side
    129,738.64x = 13,097,273,620.89
  5. Step 5: Solve for x
    x = 13,097,273,620.89/129,738.64
  6. Step 6: Final answer
    x = 100,951.22

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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.