Home / 128,261.94-176,958.33-82,997.19

Finding the Fourth Proportional to 128,261.94, 176,958.33 and 82,997.19

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Solution

The fourth proportional to 128,261.94, 176,958.33 and 82,997.19 is: 114,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,261.94 : 176,958.33 = 82,997.19 : x
  2. Step 2: Convert to fraction form
    128,261.94/176,958.33 = 82,997.19/x
  3. Step 3: Cross multiply
    128,261.94x = 176,958.33 × 82,997.19
  4. Step 4: Simplify right side
    128,261.94x = 14,687,044,157.65
  5. Step 5: Solve for x
    x = 14,687,044,157.65/128,261.94
  6. Step 6: Final answer
    x = 114,508.20

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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.