Home / 171,908.10-258,056.55-132,639.30

Finding the Fourth Proportional to 171,908.10, 258,056.55 and 132,639.30

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Solution

The fourth proportional to 171,908.10, 258,056.55 and 132,639.30 is: 199,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,908.10 : 258,056.55 = 132,639.30 : x
  2. Step 2: Convert to fraction form
    171,908.10/258,056.55 = 132,639.30/x
  3. Step 3: Cross multiply
    171,908.10x = 258,056.55 × 132,639.30
  4. Step 4: Simplify right side
    171,908.10x = 34,228,440,152.42
  5. Step 5: Solve for x
    x = 34,228,440,152.42/171,908.10
  6. Step 6: Final answer
    x = 199,108.94

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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.