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Finding the Fourth Proportional to 159,969, 220,757.22 and 92,905.32

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Solution

The fourth proportional to 159,969, 220,757.22 and 92,905.32 is: 128,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,969 : 220,757.22 = 92,905.32 : x
  2. Step 2: Convert to fraction form
    159,969/220,757.22 = 92,905.32/x
  3. Step 3: Cross multiply
    159,969x = 220,757.22 × 92,905.32
  4. Step 4: Simplify right side
    159,969x = 20,509,520,166.41
  5. Step 5: Solve for x
    x = 20,509,520,166.41/159,969
  6. Step 6: Final answer
    x = 128,209.34

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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.