Home / 118,991.30-178,487.55-40,106.21

Finding the Fourth Proportional to 118,991.30, 178,487.55 and 40,106.21

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Solution

The fourth proportional to 118,991.30, 178,487.55 and 40,106.21 is: 60,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,991.30 : 178,487.55 = 40,106.21 : x
  2. Step 2: Convert to fraction form
    118,991.30/178,487.55 = 40,106.21/x
  3. Step 3: Cross multiply
    118,991.30x = 178,487.55 × 40,106.21
  4. Step 4: Simplify right side
    118,991.30x = 7,158,458,270.25
  5. Step 5: Solve for x
    x = 7,158,458,270.25/118,991.30
  6. Step 6: Final answer
    x = 60,159.51

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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.