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Finding the Fourth Proportional to 120,477.62, 166,260.04 and 66,763.50

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Solution

The fourth proportional to 120,477.62, 166,260.04 and 66,763.50 is: 92,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,477.62 : 166,260.04 = 66,763.50 : x
  2. Step 2: Convert to fraction form
    120,477.62/166,260.04 = 66,763.50/x
  3. Step 3: Cross multiply
    120,477.62x = 166,260.04 × 66,763.50
  4. Step 4: Simplify right side
    120,477.62x = 11,100,102,013.63
  5. Step 5: Solve for x
    x = 11,100,102,013.63/120,477.62
  6. Step 6: Final answer
    x = 92,134.14

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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.