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Finding the Fourth Proportional to 120,477.41, 166,259.81 and 66,763.32

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Solution

The fourth proportional to 120,477.41, 166,259.81 and 66,763.32 is: 92,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,477.41 : 166,259.81 = 66,763.32 : x
  2. Step 2: Convert to fraction form
    120,477.41/166,259.81 = 66,763.32/x
  3. Step 3: Cross multiply
    120,477.41x = 166,259.81 × 66,763.32
  4. Step 4: Simplify right side
    120,477.41x = 11,100,056,564.35
  5. Step 5: Solve for x
    x = 11,100,056,564.35/120,477.41
  6. Step 6: Final answer
    x = 92,133.93

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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.