Home / 110,917.60-166,157.70-66,412.15

Finding the Fourth Proportional to 110,917.60, 166,157.70 and 66,412.15

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Solution

The fourth proportional to 110,917.60, 166,157.70 and 66,412.15 is: 99,487.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,917.60 : 166,157.70 = 66,412.15 : x
  2. Step 2: Convert to fraction form
    110,917.60/166,157.70 = 66,412.15/x
  3. Step 3: Cross multiply
    110,917.60x = 166,157.70 × 66,412.15
  4. Step 4: Simplify right side
    110,917.60x = 11,034,890,096.06
  5. Step 5: Solve for x
    x = 11,034,890,096.06/110,917.60
  6. Step 6: Final answer
    x = 99,487.28

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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.