Home / 236,942.12-326,980.13-129,512.57

Finding the Fourth Proportional to 236,942.12, 326,980.13 and 129,512.57

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Solution

The fourth proportional to 236,942.12, 326,980.13 and 129,512.57 is: 178,727.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,942.12 : 326,980.13 = 129,512.57 : x
  2. Step 2: Convert to fraction form
    236,942.12/326,980.13 = 129,512.57/x
  3. Step 3: Cross multiply
    236,942.12x = 326,980.13 × 129,512.57
  4. Step 4: Simplify right side
    236,942.12x = 42,348,034,692.77
  5. Step 5: Solve for x
    x = 42,348,034,692.77/236,942.12
  6. Step 6: Final answer
    x = 178,727.34

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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.