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Finding the Fourth Proportional to 128,035.42, 192,053.16 and 43,796.39

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Solution

The fourth proportional to 128,035.42, 192,053.16 and 43,796.39 is: 65,694.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,035.42 : 192,053.16 = 43,796.39 : x
  2. Step 2: Convert to fraction form
    128,035.42/192,053.16 = 43,796.39/x
  3. Step 3: Cross multiply
    128,035.42x = 192,053.16 × 43,796.39
  4. Step 4: Simplify right side
    128,035.42x = 8,411,234,135.83
  5. Step 5: Solve for x
    x = 8,411,234,135.83/128,035.42
  6. Step 6: Final answer
    x = 65,694.59

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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.