Home / 129,747.94-179,054.52-76,048.18

Finding the Fourth Proportional to 129,747.94, 179,054.52 and 76,048.18

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Solution

The fourth proportional to 129,747.94, 179,054.52 and 76,048.18 is: 104,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,747.94 : 179,054.52 = 76,048.18 : x
  2. Step 2: Convert to fraction form
    129,747.94/179,054.52 = 76,048.18/x
  3. Step 3: Cross multiply
    129,747.94x = 179,054.52 × 76,048.18
  4. Step 4: Simplify right side
    129,747.94x = 13,616,770,366.77
  5. Step 5: Solve for x
    x = 13,616,770,366.77/129,747.94
  6. Step 6: Final answer
    x = 104,947.87

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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.