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Finding the Fourth Proportional to 111,157.56, 166,736.40 and 28,051.56

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Solution

The fourth proportional to 111,157.56, 166,736.40 and 28,051.56 is: 42,077.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,157.56 : 166,736.40 = 28,051.56 : x
  2. Step 2: Convert to fraction form
    111,157.56/166,736.40 = 28,051.56/x
  3. Step 3: Cross multiply
    111,157.56x = 166,736.40 × 28,051.56
  4. Step 4: Simplify right side
    111,157.56x = 4,677,216,128.78
  5. Step 5: Solve for x
    x = 4,677,216,128.78/111,157.56
  6. Step 6: Final answer
    x = 42,077.36

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1.5x scale

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.