Home / 118,730.16-178,160.82-66,169.26

Finding the Fourth Proportional to 118,730.16, 178,160.82 and 66,169.26

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Solution

The fourth proportional to 118,730.16, 178,160.82 and 66,169.26 is: 99,290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,730.16 : 178,160.82 = 66,169.26 : x
  2. Step 2: Convert to fraction form
    118,730.16/178,160.82 = 66,169.26/x
  3. Step 3: Cross multiply
    118,730.16x = 178,160.82 × 66,169.26
  4. Step 4: Simplify right side
    118,730.16x = 11,788,769,620.39
  5. Step 5: Solve for x
    x = 11,788,769,620.39/118,730.16
  6. Step 6: Final answer
    x = 99,290.44

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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.