Home / 236,609.64-326,518.83-129,179.34

Finding the Fourth Proportional to 236,609.64, 326,518.83 and 129,179.34

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Solution

The fourth proportional to 236,609.64, 326,518.83 and 129,179.34 is: 178,266.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,609.64 : 326,518.83 = 129,179.34 : x
  2. Step 2: Convert to fraction form
    236,609.64/326,518.83 = 129,179.34/x
  3. Step 3: Cross multiply
    236,609.64x = 326,518.83 × 129,179.34
  4. Step 4: Simplify right side
    236,609.64x = 42,179,486,956.97
  5. Step 5: Solve for x
    x = 42,179,486,956.97/236,609.64
  6. Step 6: Final answer
    x = 178,266.14

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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.