Home / 129,975.37-179,367.24-76,261.30

Finding the Fourth Proportional to 129,975.37, 179,367.24 and 76,261.30

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Solution

The fourth proportional to 129,975.37, 179,367.24 and 76,261.30 is: 105,241.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,975.37 : 179,367.24 = 76,261.30 : x
  2. Step 2: Convert to fraction form
    129,975.37/179,367.24 = 76,261.30/x
  3. Step 3: Cross multiply
    129,975.37x = 179,367.24 × 76,261.30
  4. Step 4: Simplify right side
    129,975.37x = 13,678,778,737.37
  5. Step 5: Solve for x
    x = 13,678,778,737.37/129,975.37
  6. Step 6: Final answer
    x = 105,241.32

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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.