Home / 170,745.10-256,117.65-82,171.60

Finding the Fourth Proportional to 170,745.10, 256,117.65 and 82,171.60

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Solution

The fourth proportional to 170,745.10, 256,117.65 and 82,171.60 is: 123,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,745.10 : 256,117.65 = 82,171.60 : x
  2. Step 2: Convert to fraction form
    170,745.10/256,117.65 = 82,171.60/x
  3. Step 3: Cross multiply
    170,745.10x = 256,117.65 × 82,171.60
  4. Step 4: Simplify right side
    170,745.10x = 21,045,597,088.74
  5. Step 5: Solve for x
    x = 21,045,597,088.74/170,745.10
  6. Step 6: Final answer
    x = 123,257.40

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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.