Home / 143,288.73-197,739.60-89,604.87

Finding the Fourth Proportional to 143,288.73, 197,739.60 and 89,604.87

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Solution

The fourth proportional to 143,288.73, 197,739.60 and 89,604.87 is: 123,655.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,288.73 : 197,739.60 = 89,604.87 : x
  2. Step 2: Convert to fraction form
    143,288.73/197,739.60 = 89,604.87/x
  3. Step 3: Cross multiply
    143,288.73x = 197,739.60 × 89,604.87
  4. Step 4: Simplify right side
    143,288.73x = 17,718,431,151.85
  5. Step 5: Solve for x
    x = 17,718,431,151.85/143,288.73
  6. Step 6: Final answer
    x = 123,655.44

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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.