Home / 118,968.60-164,190.38-71,221.93

Finding the Fourth Proportional to 118,968.60, 164,190.38 and 71,221.93

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Solution

The fourth proportional to 118,968.60, 164,190.38 and 71,221.93 is: 98,294.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,968.60 : 164,190.38 = 71,221.93 : x
  2. Step 2: Convert to fraction form
    118,968.60/164,190.38 = 71,221.93/x
  3. Step 3: Cross multiply
    118,968.60x = 164,190.38 × 71,221.93
  4. Step 4: Simplify right side
    118,968.60x = 11,693,955,751.03
  5. Step 5: Solve for x
    x = 11,693,955,751.03/118,968.60
  6. Step 6: Final answer
    x = 98,294.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.