Home / 252,243.62-378,364.04-108,128.21

Finding the Fourth Proportional to 252,243.62, 378,364.04 and 108,128.21

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Solution

The fourth proportional to 252,243.62, 378,364.04 and 108,128.21 is: 162,191.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,243.62 : 378,364.04 = 108,128.21 : x
  2. Step 2: Convert to fraction form
    252,243.62/378,364.04 = 108,128.21/x
  3. Step 3: Cross multiply
    252,243.62x = 378,364.04 × 108,128.21
  4. Step 4: Simplify right side
    252,243.62x = 40,911,826,373.57
  5. Step 5: Solve for x
    x = 40,911,826,373.57/252,243.62
  6. Step 6: Final answer
    x = 162,191.72

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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.