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Finding the Fourth Proportional to 158,361, 218,531.78 and 94,733.96

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Solution

The fourth proportional to 158,361, 218,531.78 and 94,733.96 is: 130,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,361 : 218,531.78 = 94,733.96 : x
  2. Step 2: Convert to fraction form
    158,361/218,531.78 = 94,733.96/x
  3. Step 3: Cross multiply
    158,361x = 218,531.78 × 94,733.96
  4. Step 4: Simplify right side
    158,361x = 20,702,380,905.25
  5. Step 5: Solve for x
    x = 20,702,380,905.25/158,361
  6. Step 6: Final answer
    x = 130,729.04

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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.