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Finding the Fourth Proportional to 157,893.36, 236,635.92 and 118,138.56

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Solution

The fourth proportional to 157,893.36, 236,635.92 and 118,138.56 is: 177,055.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,893.36 : 236,635.92 = 118,138.56 : x
  2. Step 2: Convert to fraction form
    157,893.36/236,635.92 = 118,138.56/x
  3. Step 3: Cross multiply
    157,893.36x = 236,635.92 × 118,138.56
  4. Step 4: Simplify right side
    157,893.36x = 27,955,826,833.08
  5. Step 5: Solve for x
    x = 27,955,826,833.08/157,893.36
  6. Step 6: Final answer
    x = 177,055.11

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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.