Home / 120,983.90-166,956.90-67,268.48

Finding the Fourth Proportional to 120,983.90, 166,956.90 and 67,268.48

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Solution

The fourth proportional to 120,983.90, 166,956.90 and 67,268.48 is: 92,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,983.90 : 166,956.90 = 67,268.48 : x
  2. Step 2: Convert to fraction form
    120,983.90/166,956.90 = 67,268.48/x
  3. Step 3: Cross multiply
    120,983.90x = 166,956.90 × 67,268.48
  4. Step 4: Simplify right side
    120,983.90x = 11,230,936,888.51
  5. Step 5: Solve for x
    x = 11,230,936,888.51/120,983.90
  6. Step 6: Final answer
    x = 92,830.01

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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.