Home / 142,910.04-197,227.68-79,268.40

Finding the Fourth Proportional to 142,910.04, 197,227.68 and 79,268.40

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Solution

The fourth proportional to 142,910.04, 197,227.68 and 79,268.40 is: 109,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,910.04 : 197,227.68 = 79,268.40 : x
  2. Step 2: Convert to fraction form
    142,910.04/197,227.68 = 79,268.40/x
  3. Step 3: Cross multiply
    142,910.04x = 197,227.68 × 79,268.40
  4. Step 4: Simplify right side
    142,910.04x = 15,633,922,629.31
  5. Step 5: Solve for x
    x = 15,633,922,629.31/142,910.04
  6. Step 6: Final answer
    x = 109,396.95

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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.