Home / 142,375.04-196,467.92-78,704.24

Finding the Fourth Proportional to 142,375.04, 196,467.92 and 78,704.24

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Solution

The fourth proportional to 142,375.04, 196,467.92 and 78,704.24 is: 108,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,375.04 : 196,467.92 = 78,704.24 : x
  2. Step 2: Convert to fraction form
    142,375.04/196,467.92 = 78,704.24/x
  3. Step 3: Cross multiply
    142,375.04x = 196,467.92 × 78,704.24
  4. Step 4: Simplify right side
    142,375.04x = 15,462,858,327.98
  5. Step 5: Solve for x
    x = 15,462,858,327.98/142,375.04
  6. Step 6: Final answer
    x = 108,606.52

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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.