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Finding the Fourth Proportional to 171,947.80, 258,116.10 and 101,866.60

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Solution

The fourth proportional to 171,947.80, 258,116.10 and 101,866.60 is: 152,915.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,947.80 : 258,116.10 = 101,866.60 : x
  2. Step 2: Convert to fraction form
    171,947.80/258,116.10 = 101,866.60/x
  3. Step 3: Cross multiply
    171,947.80x = 258,116.10 × 101,866.60
  4. Step 4: Simplify right side
    171,947.80x = 26,293,409,512.26
  5. Step 5: Solve for x
    x = 26,293,409,512.26/171,947.80
  6. Step 6: Final answer
    x = 152,915.07

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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.