Home / 170,820.90-256,231.35-168,488.10

Finding the Fourth Proportional to 170,820.90, 256,231.35 and 168,488.10

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Solution

The fourth proportional to 170,820.90, 256,231.35 and 168,488.10 is: 252,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,820.90 : 256,231.35 = 168,488.10 : x
  2. Step 2: Convert to fraction form
    170,820.90/256,231.35 = 168,488.10/x
  3. Step 3: Cross multiply
    170,820.90x = 256,231.35 × 168,488.10
  4. Step 4: Simplify right side
    170,820.90x = 43,171,933,321.94
  5. Step 5: Solve for x
    x = 43,171,933,321.94/170,820.90
  6. Step 6: Final answer
    x = 252,732.15

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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.