Home / 142,882.13-197,188.49-79,232.33

Finding the Fourth Proportional to 142,882.13, 197,188.49 and 79,232.33

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Solution

The fourth proportional to 142,882.13, 197,188.49 and 79,232.33 is: 109,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,882.13 : 197,188.49 = 79,232.33 : x
  2. Step 2: Convert to fraction form
    142,882.13/197,188.49 = 79,232.33/x
  3. Step 3: Cross multiply
    142,882.13x = 197,188.49 × 79,232.33
  4. Step 4: Simplify right side
    142,882.13x = 15,623,703,511.88
  5. Step 5: Solve for x
    x = 15,623,703,511.88/142,882.13
  6. Step 6: Final answer
    x = 109,346.80

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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.