Home / 236,709.03-326,656.80-129,279.09

Finding the Fourth Proportional to 236,709.03, 326,656.80 and 129,279.09

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Solution

The fourth proportional to 236,709.03, 326,656.80 and 129,279.09 is: 178,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,709.03 : 326,656.80 = 129,279.09 : x
  2. Step 2: Convert to fraction form
    236,709.03/326,656.80 = 129,279.09/x
  3. Step 3: Cross multiply
    236,709.03x = 326,656.80 × 129,279.09
  4. Step 4: Simplify right side
    236,709.03x = 42,229,893,846.31
  5. Step 5: Solve for x
    x = 42,229,893,846.31/236,709.03
  6. Step 6: Final answer
    x = 178,404.24

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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.