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Finding the Fourth Proportional to 157,635.32, 217,541.53 and 89,662.07

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Solution

The fourth proportional to 157,635.32, 217,541.53 and 89,662.07 is: 123,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,635.32 : 217,541.53 = 89,662.07 : x
  2. Step 2: Convert to fraction form
    157,635.32/217,541.53 = 89,662.07/x
  3. Step 3: Cross multiply
    157,635.32x = 217,541.53 × 89,662.07
  4. Step 4: Simplify right side
    157,635.32x = 19,505,224,546.70
  5. Step 5: Solve for x
    x = 19,505,224,546.70/157,635.32
  6. Step 6: Final answer
    x = 123,736.39

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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.