Home / 143,030.07-197,383.62-79,371.96

Finding the Fourth Proportional to 143,030.07, 197,383.62 and 79,371.96

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Solution

The fourth proportional to 143,030.07, 197,383.62 and 79,371.96 is: 109,534.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,030.07 : 197,383.62 = 79,371.96 : x
  2. Step 2: Convert to fraction form
    143,030.07/197,383.62 = 79,371.96/x
  3. Step 3: Cross multiply
    143,030.07x = 197,383.62 × 79,371.96
  4. Step 4: Simplify right side
    143,030.07x = 15,666,724,791.30
  5. Step 5: Solve for x
    x = 15,666,724,791.30/143,030.07
  6. Step 6: Final answer
    x = 109,534.48

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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.