Home / 131,391.92-197,091.96-51,426.80

Finding the Fourth Proportional to 131,391.92, 197,091.96 and 51,426.80

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Solution

The fourth proportional to 131,391.92, 197,091.96 and 51,426.80 is: 77,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,391.92 : 197,091.96 = 51,426.80 : x
  2. Step 2: Convert to fraction form
    131,391.92/197,091.96 = 51,426.80/x
  3. Step 3: Cross multiply
    131,391.92x = 197,091.96 × 51,426.80
  4. Step 4: Simplify right side
    131,391.92x = 10,135,808,808.53
  5. Step 5: Solve for x
    x = 10,135,808,808.53/131,391.92
  6. Step 6: Final answer
    x = 77,141.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.