Home / 143,313.03-197,767.17-79,649.46

Finding the Fourth Proportional to 143,313.03, 197,767.17 and 79,649.46

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Solution

The fourth proportional to 143,313.03, 197,767.17 and 79,649.46 is: 109,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,313.03 : 197,767.17 = 79,649.46 : x
  2. Step 2: Convert to fraction form
    143,313.03/197,767.17 = 79,649.46/x
  3. Step 3: Cross multiply
    143,313.03x = 197,767.17 × 79,649.46
  4. Step 4: Simplify right side
    143,313.03x = 15,752,048,296.23
  5. Step 5: Solve for x
    x = 15,752,048,296.23/143,313.03
  6. Step 6: Final answer
    x = 109,913.58

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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.