Home / 143,628.02-215,456.78-54,956.10

Finding the Fourth Proportional to 143,628.02, 215,456.78 and 54,956.10

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Solution

The fourth proportional to 143,628.02, 215,456.78 and 54,956.10 is: 82,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,628.02 : 215,456.78 = 54,956.10 : x
  2. Step 2: Convert to fraction form
    143,628.02/215,456.78 = 54,956.10/x
  3. Step 3: Cross multiply
    143,628.02x = 215,456.78 × 54,956.10
  4. Step 4: Simplify right side
    143,628.02x = 11,840,664,347.36
  5. Step 5: Solve for x
    x = 11,840,664,347.36/143,628.02
  6. Step 6: Final answer
    x = 82,439.79

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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.