Home / 118,910.40-178,392.96-40,022.52

Finding the Fourth Proportional to 118,910.40, 178,392.96 and 40,022.52

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Solution

The fourth proportional to 118,910.40, 178,392.96 and 40,022.52 is: 60,042.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,910.40 : 178,392.96 = 40,022.52 : x
  2. Step 2: Convert to fraction form
    118,910.40/178,392.96 = 40,022.52/x
  3. Step 3: Cross multiply
    118,910.40x = 178,392.96 × 40,022.52
  4. Step 4: Simplify right side
    118,910.40x = 7,139,735,809.46
  5. Step 5: Solve for x
    x = 7,139,735,809.46/118,910.40
  6. Step 6: Final answer
    x = 60,042.99

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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.