Home / 142,929.90-197,229.33-79,266.33

Finding the Fourth Proportional to 142,929.90, 197,229.33 and 79,266.33

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Solution

The fourth proportional to 142,929.90, 197,229.33 and 79,266.33 is: 109,379.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,929.90 : 197,229.33 = 79,266.33 : x
  2. Step 2: Convert to fraction form
    142,929.90/197,229.33 = 79,266.33/x
  3. Step 3: Cross multiply
    142,929.90x = 197,229.33 × 79,266.33
  4. Step 4: Simplify right side
    142,929.90x = 15,633,645,157.46
  5. Step 5: Solve for x
    x = 15,633,645,157.46/142,929.90
  6. Step 6: Final answer
    x = 109,379.81

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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.