Home / 236,825.88-326,815.85-129,393.60

Finding the Fourth Proportional to 236,825.88, 326,815.85 and 129,393.60

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Solution

The fourth proportional to 236,825.88, 326,815.85 and 129,393.60 is: 178,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,825.88 : 326,815.85 = 129,393.60 : x
  2. Step 2: Convert to fraction form
    236,825.88/326,815.85 = 129,393.60/x
  3. Step 3: Cross multiply
    236,825.88x = 326,815.85 × 129,393.60
  4. Step 4: Simplify right side
    236,825.88x = 42,287,878,721.59
  5. Step 5: Solve for x
    x = 42,287,878,721.59/236,825.88
  6. Step 6: Final answer
    x = 178,561.05

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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.