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Finding the Fourth Proportional to 115,610.52, 159,495.30 and 91,641

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Solution

The fourth proportional to 115,610.52, 159,495.30 and 91,641 is: 126,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,610.52 : 159,495.30 = 91,641 : x
  2. Step 2: Convert to fraction form
    115,610.52/159,495.30 = 91,641/x
  3. Step 3: Cross multiply
    115,610.52x = 159,495.30 × 91,641
  4. Step 4: Simplify right side
    115,610.52x = 14,616,308,787.30
  5. Step 5: Solve for x
    x = 14,616,308,787.30/115,610.52
  6. Step 6: Final answer
    x = 126,427.15

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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.