Home / 236,589.80-326,498.87-129,164.36

Finding the Fourth Proportional to 236,589.80, 326,498.87 and 129,164.36

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Solution

The fourth proportional to 236,589.80, 326,498.87 and 129,164.36 is: 178,249.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,589.80 : 326,498.87 = 129,164.36 : x
  2. Step 2: Convert to fraction form
    236,589.80/326,498.87 = 129,164.36/x
  3. Step 3: Cross multiply
    236,589.80x = 326,498.87 × 129,164.36
  4. Step 4: Simplify right side
    236,589.80x = 42,172,016,938.45
  5. Step 5: Solve for x
    x = 42,172,016,938.45/236,589.80
  6. Step 6: Final answer
    x = 178,249.51

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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.