Home / 110,711.20-166,066.80-102,157.60

Finding the Fourth Proportional to 110,711.20, 166,066.80 and 102,157.60

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Solution

The fourth proportional to 110,711.20, 166,066.80 and 102,157.60 is: 153,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,711.20 : 166,066.80 = 102,157.60 : x
  2. Step 2: Convert to fraction form
    110,711.20/166,066.80 = 102,157.60/x
  3. Step 3: Cross multiply
    110,711.20x = 166,066.80 × 102,157.60
  4. Step 4: Simplify right side
    110,711.20x = 16,964,985,727.68
  5. Step 5: Solve for x
    x = 16,964,985,727.68/110,711.20
  6. Step 6: Final answer
    x = 153,236.40

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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.