Home / 118,835.12-178,127.33-43,907.28

Finding the Fourth Proportional to 118,835.12, 178,127.33 and 43,907.28

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Solution

The fourth proportional to 118,835.12, 178,127.33 and 43,907.28 is: 65,814.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,835.12 : 178,127.33 = 43,907.28 : x
  2. Step 2: Convert to fraction form
    118,835.12/178,127.33 = 43,907.28/x
  3. Step 3: Cross multiply
    118,835.12x = 178,127.33 × 43,907.28
  4. Step 4: Simplify right side
    118,835.12x = 7,821,086,334.43
  5. Step 5: Solve for x
    x = 7,821,086,334.43/118,835.12
  6. Step 6: Final answer
    x = 65,814.61

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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.