Home / 142,906.16-197,215.08-79,249.88

Finding the Fourth Proportional to 142,906.16, 197,215.08 and 79,249.88

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Solution

The fourth proportional to 142,906.16, 197,215.08 and 79,249.88 is: 109,367.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,906.16 : 197,215.08 = 79,249.88 : x
  2. Step 2: Convert to fraction form
    142,906.16/197,215.08 = 79,249.88/x
  3. Step 3: Cross multiply
    142,906.16x = 197,215.08 × 79,249.88
  4. Step 4: Simplify right side
    142,906.16x = 15,629,271,424.19
  5. Step 5: Solve for x
    x = 15,629,271,424.19/142,906.16
  6. Step 6: Final answer
    x = 109,367.37

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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.