Home / 128,528.34-192,755.49-44,285.10

Finding the Fourth Proportional to 128,528.34, 192,755.49 and 44,285.10

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Solution

The fourth proportional to 128,528.34, 192,755.49 and 44,285.10 is: 66,414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,528.34 : 192,755.49 = 44,285.10 : x
  2. Step 2: Convert to fraction form
    128,528.34/192,755.49 = 44,285.10/x
  3. Step 3: Cross multiply
    128,528.34x = 192,755.49 × 44,285.10
  4. Step 4: Simplify right side
    128,528.34x = 8,536,196,150.20
  5. Step 5: Solve for x
    x = 8,536,196,150.20/128,528.34
  6. Step 6: Final answer
    x = 66,414.89

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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.