Home / 129,829.50-179,161.47-73,236.42

Finding the Fourth Proportional to 129,829.50, 179,161.47 and 73,236.42

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Solution

The fourth proportional to 129,829.50, 179,161.47 and 73,236.42 is: 101,064.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,829.50 : 179,161.47 = 73,236.42 : x
  2. Step 2: Convert to fraction form
    129,829.50/179,161.47 = 73,236.42/x
  3. Step 3: Cross multiply
    129,829.50x = 179,161.47 × 73,236.42
  4. Step 4: Simplify right side
    129,829.50x = 13,121,144,664.74
  5. Step 5: Solve for x
    x = 13,121,144,664.74/129,829.50
  6. Step 6: Final answer
    x = 101,064.43

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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.