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Finding the Fourth Proportional to 188,752.77, 283,178.16 and 70,425

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Solution

The fourth proportional to 188,752.77, 283,178.16 and 70,425 is: 105,655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,752.77 : 283,178.16 = 70,425 : x
  2. Step 2: Convert to fraction form
    188,752.77/283,178.16 = 70,425/x
  3. Step 3: Cross multiply
    188,752.77x = 283,178.16 × 70,425
  4. Step 4: Simplify right side
    188,752.77x = 19,942,821,918
  5. Step 5: Solve for x
    x = 19,942,821,918/188,752.77
  6. Step 6: Final answer
    x = 105,655.78

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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.