Home / 268,115.64-402,173.10-68,436.06

Finding the Fourth Proportional to 268,115.64, 402,173.10 and 68,436.06

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Solution

The fourth proportional to 268,115.64, 402,173.10 and 68,436.06 is: 102,654.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,115.64 : 402,173.10 = 68,436.06 : x
  2. Step 2: Convert to fraction form
    268,115.64/402,173.10 = 68,436.06/x
  3. Step 3: Cross multiply
    268,115.64x = 402,173.10 × 68,436.06
  4. Step 4: Simplify right side
    268,115.64x = 27,523,142,401.99
  5. Step 5: Solve for x
    x = 27,523,142,401.99/268,115.64
  6. Step 6: Final answer
    x = 102,654.00

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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.