Home / 118,763.12-178,150.80-30,017.39

Finding the Fourth Proportional to 118,763.12, 178,150.80 and 30,017.39

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Solution

The fourth proportional to 118,763.12, 178,150.80 and 30,017.39 is: 45,027.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,763.12 : 178,150.80 = 30,017.39 : x
  2. Step 2: Convert to fraction form
    118,763.12/178,150.80 = 30,017.39/x
  3. Step 3: Cross multiply
    118,763.12x = 178,150.80 × 30,017.39
  4. Step 4: Simplify right side
    118,763.12x = 5,347,622,042.41
  5. Step 5: Solve for x
    x = 5,347,622,042.41/118,763.12
  6. Step 6: Final answer
    x = 45,027.63

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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.