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Finding the Fourth Proportional to 126,735.54, 190,145.43 and 42,504

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Solution

The fourth proportional to 126,735.54, 190,145.43 and 42,504 is: 63,770.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,735.54 : 190,145.43 = 42,504 : x
  2. Step 2: Convert to fraction form
    126,735.54/190,145.43 = 42,504/x
  3. Step 3: Cross multiply
    126,735.54x = 190,145.43 × 42,504
  4. Step 4: Simplify right side
    126,735.54x = 8,081,941,356.72
  5. Step 5: Solve for x
    x = 8,081,941,356.72/126,735.54
  6. Step 6: Final answer
    x = 63,770.13

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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.