Home / 129,918.76-179,284.26-73,335.40

Finding the Fourth Proportional to 129,918.76, 179,284.26 and 73,335.40

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Solution

The fourth proportional to 129,918.76, 179,284.26 and 73,335.40 is: 101,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,918.76 : 179,284.26 = 73,335.40 : x
  2. Step 2: Convert to fraction form
    129,918.76/179,284.26 = 73,335.40/x
  3. Step 3: Cross multiply
    129,918.76x = 179,284.26 × 73,335.40
  4. Step 4: Simplify right side
    129,918.76x = 13,147,882,920.80
  5. Step 5: Solve for x
    x = 13,147,882,920.80/129,918.76
  6. Step 6: Final answer
    x = 101,200.80

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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.