Home / 129,836.16-179,166.96-73,243.89

Finding the Fourth Proportional to 129,836.16, 179,166.96 and 73,243.89

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Solution

The fourth proportional to 129,836.16, 179,166.96 and 73,243.89 is: 101,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,836.16 : 179,166.96 = 73,243.89 : x
  2. Step 2: Convert to fraction form
    129,836.16/179,166.96 = 73,243.89/x
  3. Step 3: Cross multiply
    129,836.16x = 179,166.96 × 73,243.89
  4. Step 4: Simplify right side
    129,836.16x = 13,122,885,109.87
  5. Step 5: Solve for x
    x = 13,122,885,109.87/129,836.16
  6. Step 6: Final answer
    x = 101,072.65

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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.