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Finding the Fourth Proportional to 118,889.37, 178,334.37 and 30,142.92

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Solution

The fourth proportional to 118,889.37, 178,334.37 and 30,142.92 is: 45,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,889.37 : 178,334.37 = 30,142.92 : x
  2. Step 2: Convert to fraction form
    118,889.37/178,334.37 = 30,142.92/x
  3. Step 3: Cross multiply
    118,889.37x = 178,334.37 × 30,142.92
  4. Step 4: Simplify right side
    118,889.37x = 5,375,518,648.16
  5. Step 5: Solve for x
    x = 5,375,518,648.16/118,889.37
  6. Step 6: Final answer
    x = 45,214.46

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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.