Home / 170,318.96-255,252.04-90,340.44

Finding the Fourth Proportional to 170,318.96, 255,252.04 and 90,340.44

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Solution

The fourth proportional to 170,318.96, 255,252.04 and 90,340.44 is: 135,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,318.96 : 255,252.04 = 90,340.44 : x
  2. Step 2: Convert to fraction form
    170,318.96/255,252.04 = 90,340.44/x
  3. Step 3: Cross multiply
    170,318.96x = 255,252.04 × 90,340.44
  4. Step 4: Simplify right side
    170,318.96x = 23,059,581,604.50
  5. Step 5: Solve for x
    x = 23,059,581,604.50/170,318.96
  6. Step 6: Final answer
    x = 135,390.57

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1.5x scale

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.