Home / 236,245.52-326,012.82-128,817.56

Finding the Fourth Proportional to 236,245.52, 326,012.82 and 128,817.56

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Solution

The fourth proportional to 236,245.52, 326,012.82 and 128,817.56 is: 177,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,245.52 : 326,012.82 = 128,817.56 : x
  2. Step 2: Convert to fraction form
    236,245.52/326,012.82 = 128,817.56/x
  3. Step 3: Cross multiply
    236,245.52x = 326,012.82 × 128,817.56
  4. Step 4: Simplify right side
    236,245.52x = 41,996,176,001.12
  5. Step 5: Solve for x
    x = 41,996,176,001.12/236,245.52
  6. Step 6: Final answer
    x = 177,764.96

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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.