Home / 143,129.45-197,524.81-79,467.25

Finding the Fourth Proportional to 143,129.45, 197,524.81 and 79,467.25

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Solution

The fourth proportional to 143,129.45, 197,524.81 and 79,467.25 is: 109,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,129.45 : 197,524.81 = 79,467.25 : x
  2. Step 2: Convert to fraction form
    143,129.45/197,524.81 = 79,467.25/x
  3. Step 3: Cross multiply
    143,129.45x = 197,524.81 × 79,467.25
  4. Step 4: Simplify right side
    143,129.45x = 15,696,753,457.47
  5. Step 5: Solve for x
    x = 15,696,753,457.47/143,129.45
  6. Step 6: Final answer
    x = 109,668.23

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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.