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Finding the Fourth Proportional to 128,354.76, 192,482.82 and 44,099.16

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Solution

The fourth proportional to 128,354.76, 192,482.82 and 44,099.16 is: 66,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,354.76 : 192,482.82 = 44,099.16 : x
  2. Step 2: Convert to fraction form
    128,354.76/192,482.82 = 44,099.16/x
  3. Step 3: Cross multiply
    128,354.76x = 192,482.82 × 44,099.16
  4. Step 4: Simplify right side
    128,354.76x = 8,488,330,676.43
  5. Step 5: Solve for x
    x = 8,488,330,676.43/128,354.76
  6. Step 6: Final answer
    x = 66,131.80

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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.