Home / 217,336.80-326,167.20-112,101.60

Finding the Fourth Proportional to 217,336.80, 326,167.20 and 112,101.60

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Solution

The fourth proportional to 217,336.80, 326,167.20 and 112,101.60 is: 168,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,336.80 : 326,167.20 = 112,101.60 : x
  2. Step 2: Convert to fraction form
    217,336.80/326,167.20 = 112,101.60/x
  3. Step 3: Cross multiply
    217,336.80x = 326,167.20 × 112,101.60
  4. Step 4: Simplify right side
    217,336.80x = 36,563,864,987.52
  5. Step 5: Solve for x
    x = 36,563,864,987.52/217,336.80
  6. Step 6: Final answer
    x = 168,235.96

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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.