Home / 129,774.39-179,088.66-73,185.77

Finding the Fourth Proportional to 129,774.39, 179,088.66 and 73,185.77

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Solution

The fourth proportional to 129,774.39, 179,088.66 and 73,185.77 is: 100,996.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,774.39 : 179,088.66 = 73,185.77 : x
  2. Step 2: Convert to fraction form
    129,774.39/179,088.66 = 73,185.77/x
  3. Step 3: Cross multiply
    129,774.39x = 179,088.66 × 73,185.77
  4. Step 4: Simplify right side
    129,774.39x = 13,106,741,480.37
  5. Step 5: Solve for x
    x = 13,106,741,480.37/129,774.39
  6. Step 6: Final answer
    x = 100,996.36

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1.5x scale

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.