Home / 143,178.33-197,601.60-91,542.24

Finding the Fourth Proportional to 143,178.33, 197,601.60 and 91,542.24

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Solution

The fourth proportional to 143,178.33, 197,601.60 and 91,542.24 is: 126,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,178.33 : 197,601.60 = 91,542.24 : x
  2. Step 2: Convert to fraction form
    143,178.33/197,601.60 = 91,542.24/x
  3. Step 3: Cross multiply
    143,178.33x = 197,601.60 × 91,542.24
  4. Step 4: Simplify right side
    143,178.33x = 18,088,892,899.53
  5. Step 5: Solve for x
    x = 18,088,892,899.53/143,178.33
  6. Step 6: Final answer
    x = 126,338.20

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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.