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Finding the Fourth Proportional to 159,976, 220,766.88 and 92,912.32

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Solution

The fourth proportional to 159,976, 220,766.88 and 92,912.32 is: 128,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,976 : 220,766.88 = 92,912.32 : x
  2. Step 2: Convert to fraction form
    159,976/220,766.88 = 92,912.32/x
  3. Step 3: Cross multiply
    159,976x = 220,766.88 × 92,912.32
  4. Step 4: Simplify right side
    159,976x = 20,511,962,999.96
  5. Step 5: Solve for x
    x = 20,511,962,999.96/159,976
  6. Step 6: Final answer
    x = 128,219.00

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1.5x scale

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.