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Finding the Fourth Proportional to 117,805.35, 162,669.48 and 109,257.69

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Solution

The fourth proportional to 117,805.35, 162,669.48 and 109,257.69 is: 150,866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,805.35 : 162,669.48 = 109,257.69 : x
  2. Step 2: Convert to fraction form
    117,805.35/162,669.48 = 109,257.69/x
  3. Step 3: Cross multiply
    117,805.35x = 162,669.48 × 109,257.69
  4. Step 4: Simplify right side
    117,805.35x = 17,772,890,804.95
  5. Step 5: Solve for x
    x = 17,772,890,804.95/117,805.35
  6. Step 6: Final answer
    x = 150,866.59

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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.