Home / 236,617.89-326,530.22-129,187.59

Finding the Fourth Proportional to 236,617.89, 326,530.22 and 129,187.59

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Solution

The fourth proportional to 236,617.89, 326,530.22 and 129,187.59 is: 178,277.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,617.89 : 326,530.22 = 129,187.59 : x
  2. Step 2: Convert to fraction form
    236,617.89/326,530.22 = 129,187.59/x
  3. Step 3: Cross multiply
    236,617.89x = 326,530.22 × 129,187.59
  4. Step 4: Simplify right side
    236,617.89x = 42,183,651,538.03
  5. Step 5: Solve for x
    x = 42,183,651,538.03/236,617.89
  6. Step 6: Final answer
    x = 178,277.52

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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.