Home / 236,587.05-326,495.07-129,161.61

Finding the Fourth Proportional to 236,587.05, 326,495.07 and 129,161.61

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Solution

The fourth proportional to 236,587.05, 326,495.07 and 129,161.61 is: 178,245.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,587.05 : 326,495.07 = 129,161.61 : x
  2. Step 2: Convert to fraction form
    236,587.05/326,495.07 = 129,161.61/x
  3. Step 3: Cross multiply
    236,587.05x = 326,495.07 × 129,161.61
  4. Step 4: Simplify right side
    236,587.05x = 42,170,628,898.26
  5. Step 5: Solve for x
    x = 42,170,628,898.26/236,587.05
  6. Step 6: Final answer
    x = 178,245.72

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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.