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Finding the Fourth Proportional to 136,004.90, 203,764.35 and 65,729.30

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Solution

The fourth proportional to 136,004.90, 203,764.35 and 65,729.30 is: 98,476.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,004.90 : 203,764.35 = 65,729.30 : x
  2. Step 2: Convert to fraction form
    136,004.90/203,764.35 = 65,729.30/x
  3. Step 3: Cross multiply
    136,004.90x = 203,764.35 × 65,729.30
  4. Step 4: Simplify right side
    136,004.90x = 13,393,288,090.46
  5. Step 5: Solve for x
    x = 13,393,288,090.46/136,004.90
  6. Step 6: Final answer
    x = 98,476.51

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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.