Home / 118,206.48-177,383.55-78,791.28

Finding the Fourth Proportional to 118,206.48, 177,383.55 and 78,791.28

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Solution

The fourth proportional to 118,206.48, 177,383.55 and 78,791.28 is: 118,236.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,206.48 : 177,383.55 = 78,791.28 : x
  2. Step 2: Convert to fraction form
    118,206.48/177,383.55 = 78,791.28/x
  3. Step 3: Cross multiply
    118,206.48x = 177,383.55 × 78,791.28
  4. Step 4: Simplify right side
    118,206.48x = 13,976,276,955.44
  5. Step 5: Solve for x
    x = 13,976,276,955.44/118,206.48
  6. Step 6: Final answer
    x = 118,236.13

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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.