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Finding the Fourth Proportional to 120,362.60, 166,100.09 and 69,374.91

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Solution

The fourth proportional to 120,362.60, 166,100.09 and 69,374.91 is: 95,737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,362.60 : 166,100.09 = 69,374.91 : x
  2. Step 2: Convert to fraction form
    120,362.60/166,100.09 = 69,374.91/x
  3. Step 3: Cross multiply
    120,362.60x = 166,100.09 × 69,374.91
  4. Step 4: Simplify right side
    120,362.60x = 11,523,179,392.26
  5. Step 5: Solve for x
    x = 11,523,179,392.26/120,362.60
  6. Step 6: Final answer
    x = 95,737.21

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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.