Home / 110,849.60-166,274.40-81,325.10

Finding the Fourth Proportional to 110,849.60, 166,274.40 and 81,325.10

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Solution

The fourth proportional to 110,849.60, 166,274.40 and 81,325.10 is: 121,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,849.60 : 166,274.40 = 81,325.10 : x
  2. Step 2: Convert to fraction form
    110,849.60/166,274.40 = 81,325.10/x
  3. Step 3: Cross multiply
    110,849.60x = 166,274.40 × 81,325.10
  4. Step 4: Simplify right side
    110,849.60x = 13,522,282,207.44
  5. Step 5: Solve for x
    x = 13,522,282,207.44/110,849.60
  6. Step 6: Final answer
    x = 121,987.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.