Home / 270,664.70-405,997.05-83,695.10

Finding the Fourth Proportional to 270,664.70, 405,997.05 and 83,695.10

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Solution

The fourth proportional to 270,664.70, 405,997.05 and 83,695.10 is: 125,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,664.70 : 405,997.05 = 83,695.10 : x
  2. Step 2: Convert to fraction form
    270,664.70/405,997.05 = 83,695.10/x
  3. Step 3: Cross multiply
    270,664.70x = 405,997.05 × 83,695.10
  4. Step 4: Simplify right side
    270,664.70x = 33,979,963,699.46
  5. Step 5: Solve for x
    x = 33,979,963,699.46/270,664.70
  6. Step 6: Final answer
    x = 125,542.65

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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.