Home / 118,904.42-178,356.26-30,157.72

Finding the Fourth Proportional to 118,904.42, 178,356.26 and 30,157.72

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Solution

The fourth proportional to 118,904.42, 178,356.26 and 30,157.72 is: 45,236.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,904.42 : 178,356.26 = 30,157.72 : x
  2. Step 2: Convert to fraction form
    118,904.42/178,356.26 = 30,157.72/x
  3. Step 3: Cross multiply
    118,904.42x = 178,356.26 × 30,157.72
  4. Step 4: Simplify right side
    118,904.42x = 5,378,818,149.33
  5. Step 5: Solve for x
    x = 5,378,818,149.33/118,904.42
  6. Step 6: Final answer
    x = 45,236.49

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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.