Home / 170,143.20-255,214.80-146,523.60

Finding the Fourth Proportional to 170,143.20, 255,214.80 and 146,523.60

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Solution

The fourth proportional to 170,143.20, 255,214.80 and 146,523.60 is: 219,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,143.20 : 255,214.80 = 146,523.60 : x
  2. Step 2: Convert to fraction form
    170,143.20/255,214.80 = 146,523.60/x
  3. Step 3: Cross multiply
    170,143.20x = 255,214.80 × 146,523.60
  4. Step 4: Simplify right side
    170,143.20x = 37,394,991,269.28
  5. Step 5: Solve for x
    x = 37,394,991,269.28/170,143.20
  6. Step 6: Final answer
    x = 219,785.40

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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.