Home / 268,112.64-402,168.60-68,433.03

Finding the Fourth Proportional to 268,112.64, 402,168.60 and 68,433.03

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Solution

The fourth proportional to 268,112.64, 402,168.60 and 68,433.03 is: 102,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,112.64 : 402,168.60 = 68,433.03 : x
  2. Step 2: Convert to fraction form
    268,112.64/402,168.60 = 68,433.03/x
  3. Step 3: Cross multiply
    268,112.64x = 402,168.60 × 68,433.03
  4. Step 4: Simplify right side
    268,112.64x = 27,521,615,868.86
  5. Step 5: Solve for x
    x = 27,521,615,868.86/268,112.64
  6. Step 6: Final answer
    x = 102,649.45

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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.