Home / 236,613.24-326,534-129,191.44

Finding the Fourth Proportional to 236,613.24, 326,534 and 129,191.44

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Solution

The fourth proportional to 236,613.24, 326,534 and 129,191.44 is: 178,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,613.24 : 326,534 = 129,191.44 : x
  2. Step 2: Convert to fraction form
    236,613.24/326,534 = 129,191.44/x
  3. Step 3: Cross multiply
    236,613.24x = 326,534 × 129,191.44
  4. Step 4: Simplify right side
    236,613.24x = 42,185,397,668.96
  5. Step 5: Solve for x
    x = 42,185,397,668.96/236,613.24
  6. Step 6: Final answer
    x = 178,288.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.