Home / 142,932.70-197,259.24-79,291

Finding the Fourth Proportional to 142,932.70, 197,259.24 and 79,291

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Solution

The fourth proportional to 142,932.70, 197,259.24 and 79,291 is: 109,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,932.70 : 197,259.24 = 79,291 : x
  2. Step 2: Convert to fraction form
    142,932.70/197,259.24 = 79,291/x
  3. Step 3: Cross multiply
    142,932.70x = 197,259.24 × 79,291
  4. Step 4: Simplify right side
    142,932.70x = 15,640,882,398.84
  5. Step 5: Solve for x
    x = 15,640,882,398.84/142,932.70
  6. Step 6: Final answer
    x = 109,428.30

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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.