Home / 129,975.26-179,365.90-73,390.28

Finding the Fourth Proportional to 129,975.26, 179,365.90 and 73,390.28

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Solution

The fourth proportional to 129,975.26, 179,365.90 and 73,390.28 is: 101,278.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,975.26 : 179,365.90 = 73,390.28 : x
  2. Step 2: Convert to fraction form
    129,975.26/179,365.90 = 73,390.28/x
  3. Step 3: Cross multiply
    129,975.26x = 179,365.90 × 73,390.28
  4. Step 4: Simplify right side
    129,975.26x = 13,163,713,623.45
  5. Step 5: Solve for x
    x = 13,163,713,623.45/129,975.26
  6. Step 6: Final answer
    x = 101,278.61

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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.