Home / 142,636.44-196,844.44-78,974.24

Finding the Fourth Proportional to 142,636.44, 196,844.44 and 78,974.24

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Solution

The fourth proportional to 142,636.44, 196,844.44 and 78,974.24 is: 108,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,636.44 : 196,844.44 = 78,974.24 : x
  2. Step 2: Convert to fraction form
    142,636.44/196,844.44 = 78,974.24/x
  3. Step 3: Cross multiply
    142,636.44x = 196,844.44 × 78,974.24
  4. Step 4: Simplify right side
    142,636.44x = 15,545,638,668.13
  5. Step 5: Solve for x
    x = 15,545,638,668.13/142,636.44
  6. Step 6: Final answer
    x = 108,987.85

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1.5x scale

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.