Home / 236,605.37-326,500.20-129,175.17

Finding the Fourth Proportional to 236,605.37, 326,500.20 and 129,175.17

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Solution

The fourth proportional to 236,605.37, 326,500.20 and 129,175.17 is: 178,253.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,605.37 : 326,500.20 = 129,175.17 : x
  2. Step 2: Convert to fraction form
    236,605.37/326,500.20 = 129,175.17/x
  3. Step 3: Cross multiply
    236,605.37x = 326,500.20 × 129,175.17
  4. Step 4: Simplify right side
    236,605.37x = 42,175,718,840.03
  5. Step 5: Solve for x
    x = 42,175,718,840.03/236,605.37
  6. Step 6: Final answer
    x = 178,253.43

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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.