Home / 142,855.62-197,150.67-79,199.34

Finding the Fourth Proportional to 142,855.62, 197,150.67 and 79,199.34

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Solution

The fourth proportional to 142,855.62, 197,150.67 and 79,199.34 is: 109,300.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,855.62 : 197,150.67 = 79,199.34 : x
  2. Step 2: Convert to fraction form
    142,855.62/197,150.67 = 79,199.34/x
  3. Step 3: Cross multiply
    142,855.62x = 197,150.67 × 79,199.34
  4. Step 4: Simplify right side
    142,855.62x = 15,614,202,944.56
  5. Step 5: Solve for x
    x = 15,614,202,944.56/142,855.62
  6. Step 6: Final answer
    x = 109,300.59

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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.