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Finding the Fourth Proportional to 118,771.88, 178,157.82 and 30,025.39

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Solution

The fourth proportional to 118,771.88, 178,157.82 and 30,025.39 is: 45,038.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,771.88 : 178,157.82 = 30,025.39 : x
  2. Step 2: Convert to fraction form
    118,771.88/178,157.82 = 30,025.39/x
  3. Step 3: Cross multiply
    118,771.88x = 178,157.82 × 30,025.39
  4. Step 4: Simplify right side
    118,771.88x = 5,349,257,581.66
  5. Step 5: Solve for x
    x = 5,349,257,581.66/118,771.88
  6. Step 6: Final answer
    x = 45,038.08

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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.