Home / 143,628.53-215,457.77-54,956.21

Finding the Fourth Proportional to 143,628.53, 215,457.77 and 54,956.21

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Solution

The fourth proportional to 143,628.53, 215,457.77 and 54,956.21 is: 82,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,628.53 : 215,457.77 = 54,956.21 : x
  2. Step 2: Convert to fraction form
    143,628.53/215,457.77 = 54,956.21/x
  3. Step 3: Cross multiply
    143,628.53x = 215,457.77 × 54,956.21
  4. Step 4: Simplify right side
    143,628.53x = 11,840,741,514.35
  5. Step 5: Solve for x
    x = 11,840,741,514.35/143,628.53
  6. Step 6: Final answer
    x = 82,440.04

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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.