Home / 236,815.35-326,788.12-129,362.57

Finding the Fourth Proportional to 236,815.35, 326,788.12 and 129,362.57

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Solution

The fourth proportional to 236,815.35, 326,788.12 and 129,362.57 is: 178,511.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,815.35 : 326,788.12 = 129,362.57 : x
  2. Step 2: Convert to fraction form
    236,815.35/326,788.12 = 129,362.57/x
  3. Step 3: Cross multiply
    236,815.35x = 326,788.12 × 129,362.57
  4. Step 4: Simplify right side
    236,815.35x = 42,274,151,048.67
  5. Step 5: Solve for x
    x = 42,274,151,048.67/236,815.35
  6. Step 6: Final answer
    x = 178,511.03

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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.