Home / 170,739.10-256,108.65-82,165.60

Finding the Fourth Proportional to 170,739.10, 256,108.65 and 82,165.60

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Solution

The fourth proportional to 170,739.10, 256,108.65 and 82,165.60 is: 123,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,739.10 : 256,108.65 = 82,165.60 : x
  2. Step 2: Convert to fraction form
    170,739.10/256,108.65 = 82,165.60/x
  3. Step 3: Cross multiply
    170,739.10x = 256,108.65 × 82,165.60
  4. Step 4: Simplify right side
    170,739.10x = 21,043,320,892.44
  5. Step 5: Solve for x
    x = 21,043,320,892.44/170,739.10
  6. Step 6: Final answer
    x = 123,248.40

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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.