Home / 268,395.02-402,592.64-126,135.89

Finding the Fourth Proportional to 268,395.02, 402,592.64 and 126,135.89

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Solution

The fourth proportional to 268,395.02, 402,592.64 and 126,135.89 is: 189,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,395.02 : 402,592.64 = 126,135.89 : x
  2. Step 2: Convert to fraction form
    268,395.02/402,592.64 = 126,135.89/x
  3. Step 3: Cross multiply
    268,395.02x = 402,592.64 × 126,135.89
  4. Step 4: Simplify right side
    268,395.02x = 50,781,378,310.21
  5. Step 5: Solve for x
    x = 50,781,378,310.21/268,395.02
  6. Step 6: Final answer
    x = 189,203.88

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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.