Home / 236,610.64-326,520.21-129,180.34

Finding the Fourth Proportional to 236,610.64, 326,520.21 and 129,180.34

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Solution

The fourth proportional to 236,610.64, 326,520.21 and 129,180.34 is: 178,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,610.64 : 326,520.21 = 129,180.34 : x
  2. Step 2: Convert to fraction form
    236,610.64/326,520.21 = 129,180.34/x
  3. Step 3: Cross multiply
    236,610.64x = 326,520.21 × 129,180.34
  4. Step 4: Simplify right side
    236,610.64x = 42,179,991,744.67
  5. Step 5: Solve for x
    x = 42,179,991,744.67/236,610.64
  6. Step 6: Final answer
    x = 178,267.52

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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.