Home / 144,109.56-197,429.17-138,720.54

Finding the Fourth Proportional to 144,109.56, 197,429.17 and 138,720.54

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Solution

The fourth proportional to 144,109.56, 197,429.17 and 138,720.54 is: 190,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,109.56 : 197,429.17 = 138,720.54 : x
  2. Step 2: Convert to fraction form
    144,109.56/197,429.17 = 138,720.54/x
  3. Step 3: Cross multiply
    144,109.56x = 197,429.17 × 138,720.54
  4. Step 4: Simplify right side
    144,109.56x = 27,387,481,074.15
  5. Step 5: Solve for x
    x = 27,387,481,074.15/144,109.56
  6. Step 6: Final answer
    x = 190,046.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.