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Finding the Fourth Proportional to 153,736.80, 229,076.88 and 136,968

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Solution

The fourth proportional to 153,736.80, 229,076.88 and 136,968 is: 204,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,736.80 : 229,076.88 = 136,968 : x
  2. Step 2: Convert to fraction form
    153,736.80/229,076.88 = 136,968/x
  3. Step 3: Cross multiply
    153,736.80x = 229,076.88 × 136,968
  4. Step 4: Simplify right side
    153,736.80x = 31,376,202,099.84
  5. Step 5: Solve for x
    x = 31,376,202,099.84/153,736.80
  6. Step 6: Final answer
    x = 204,090.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.