Home / 171,276.19-256,581.81-126,215.75

Finding the Fourth Proportional to 171,276.19, 256,581.81 and 126,215.75

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Solution

The fourth proportional to 171,276.19, 256,581.81 and 126,215.75 is: 189,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,276.19 : 256,581.81 = 126,215.75 : x
  2. Step 2: Convert to fraction form
    171,276.19/256,581.81 = 126,215.75/x
  3. Step 3: Cross multiply
    171,276.19x = 256,581.81 × 126,215.75
  4. Step 4: Simplify right side
    171,276.19x = 32,384,664,954.43
  5. Step 5: Solve for x
    x = 32,384,664,954.43/171,276.19
  6. Step 6: Final answer
    x = 189,078.62

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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.