Home / 142,669.03-196,889.19-79,006.88

Finding the Fourth Proportional to 142,669.03, 196,889.19 and 79,006.88

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Solution

The fourth proportional to 142,669.03, 196,889.19 and 79,006.88 is: 109,032.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,669.03 : 196,889.19 = 79,006.88 : x
  2. Step 2: Convert to fraction form
    142,669.03/196,889.19 = 79,006.88/x
  3. Step 3: Cross multiply
    142,669.03x = 196,889.19 × 79,006.88
  4. Step 4: Simplify right side
    142,669.03x = 15,555,600,607.63
  5. Step 5: Solve for x
    x = 15,555,600,607.63/142,669.03
  6. Step 6: Final answer
    x = 109,032.78

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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.