Home / 120,504.96-166,292.28-66,788.64

Finding the Fourth Proportional to 120,504.96, 166,292.28 and 66,788.64

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Solution

The fourth proportional to 120,504.96, 166,292.28 and 66,788.64 is: 92,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,504.96 : 166,292.28 = 66,788.64 : x
  2. Step 2: Convert to fraction form
    120,504.96/166,292.28 = 66,788.64/x
  3. Step 3: Cross multiply
    120,504.96x = 166,292.28 × 66,788.64
  4. Step 4: Simplify right side
    120,504.96x = 11,106,435,223.70
  5. Step 5: Solve for x
    x = 11,106,435,223.70/120,504.96
  6. Step 6: Final answer
    x = 92,165.79

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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.