Home / 270,669.20-405,965.40-83,699.60

Finding the Fourth Proportional to 270,669.20, 405,965.40 and 83,699.60

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Solution

The fourth proportional to 270,669.20, 405,965.40 and 83,699.60 is: 125,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,669.20 : 405,965.40 = 83,699.60 : x
  2. Step 2: Convert to fraction form
    270,669.20/405,965.40 = 83,699.60/x
  3. Step 3: Cross multiply
    270,669.20x = 405,965.40 × 83,699.60
  4. Step 4: Simplify right side
    270,669.20x = 33,979,141,593.84
  5. Step 5: Solve for x
    x = 33,979,141,593.84/270,669.20
  6. Step 6: Final answer
    x = 125,537.53

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1.5x scale

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.