Home / 268,180.58-402,241.70-81,206.66

Finding the Fourth Proportional to 268,180.58, 402,241.70 and 81,206.66

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Solution

The fourth proportional to 268,180.58, 402,241.70 and 81,206.66 is: 121,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,180.58 : 402,241.70 = 81,206.66 : x
  2. Step 2: Convert to fraction form
    268,180.58/402,241.70 = 81,206.66/x
  3. Step 3: Cross multiply
    268,180.58x = 402,241.70 × 81,206.66
  4. Step 4: Simplify right side
    268,180.58x = 32,664,704,969.72
  5. Step 5: Solve for x
    x = 32,664,704,969.72/268,180.58
  6. Step 6: Final answer
    x = 121,801.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.