Home / 111,104.40-166,170.60-99,343.20

Finding the Fourth Proportional to 111,104.40, 166,170.60 and 99,343.20

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Solution

The fourth proportional to 111,104.40, 166,170.60 and 99,343.20 is: 148,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,104.40 : 166,170.60 = 99,343.20 : x
  2. Step 2: Convert to fraction form
    111,104.40/166,170.60 = 99,343.20/x
  3. Step 3: Cross multiply
    111,104.40x = 166,170.60 × 99,343.20
  4. Step 4: Simplify right side
    111,104.40x = 16,507,919,149.92
  5. Step 5: Solve for x
    x = 16,507,919,149.92/111,104.40
  6. Step 6: Final answer
    x = 148,580.25

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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.