Home / 142,949.25-197,269.97-79,300.26

Finding the Fourth Proportional to 142,949.25, 197,269.97 and 79,300.26

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Solution

The fourth proportional to 142,949.25, 197,269.97 and 79,300.26 is: 109,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,949.25 : 197,269.97 = 79,300.26 : x
  2. Step 2: Convert to fraction form
    142,949.25/197,269.97 = 79,300.26/x
  3. Step 3: Cross multiply
    142,949.25x = 197,269.97 × 79,300.26
  4. Step 4: Simplify right side
    142,949.25x = 15,643,559,514.69
  5. Step 5: Solve for x
    x = 15,643,559,514.69/142,949.25
  6. Step 6: Final answer
    x = 109,434.36

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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.