Home / 129,727.96-179,017.64-73,135.69

Finding the Fourth Proportional to 129,727.96, 179,017.64 and 73,135.69

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Solution

The fourth proportional to 129,727.96, 179,017.64 and 73,135.69 is: 100,923.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,727.96 : 179,017.64 = 73,135.69 : x
  2. Step 2: Convert to fraction form
    129,727.96/179,017.64 = 73,135.69/x
  3. Step 3: Cross multiply
    129,727.96x = 179,017.64 × 73,135.69
  4. Step 4: Simplify right side
    129,727.96x = 13,092,578,257.89
  5. Step 5: Solve for x
    x = 13,092,578,257.89/129,727.96
  6. Step 6: Final answer
    x = 100,923.33

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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.