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Finding the Fourth Proportional to 178,845, 267,859.26 and 85,416.36

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Solution

The fourth proportional to 178,845, 267,859.26 and 85,416.36 is: 127,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,845 : 267,859.26 = 85,416.36 : x
  2. Step 2: Convert to fraction form
    178,845/267,859.26 = 85,416.36/x
  3. Step 3: Cross multiply
    178,845x = 267,859.26 × 85,416.36
  4. Step 4: Simplify right side
    178,845x = 22,879,562,981.49
  5. Step 5: Solve for x
    x = 22,879,562,981.49/178,845
  6. Step 6: Final answer
    x = 127,929.56

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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.