Home / 166,238.56-229,408-90,787.04

Finding the Fourth Proportional to 166,238.56, 229,408 and 90,787.04

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Solution

The fourth proportional to 166,238.56, 229,408 and 90,787.04 is: 125,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,238.56 : 229,408 = 90,787.04 : x
  2. Step 2: Convert to fraction form
    166,238.56/229,408 = 90,787.04/x
  3. Step 3: Cross multiply
    166,238.56x = 229,408 × 90,787.04
  4. Step 4: Simplify right side
    166,238.56x = 20,827,273,272.32
  5. Step 5: Solve for x
    x = 20,827,273,272.32/166,238.56
  6. Step 6: Final answer
    x = 125,285.45

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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.