Home / 236,629.36-326,549.20-129,200.32

Finding the Fourth Proportional to 236,629.36, 326,549.20 and 129,200.32

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Solution

The fourth proportional to 236,629.36, 326,549.20 and 129,200.32 is: 178,296.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,629.36 : 326,549.20 = 129,200.32 : x
  2. Step 2: Convert to fraction form
    236,629.36/326,549.20 = 129,200.32/x
  3. Step 3: Cross multiply
    236,629.36x = 326,549.20 × 129,200.32
  4. Step 4: Simplify right side
    236,629.36x = 42,190,261,135.74
  5. Step 5: Solve for x
    x = 42,190,261,135.74/236,629.36
  6. Step 6: Final answer
    x = 178,296.81

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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.