Home / 161,067.27-222,384.05-100,665.07

Finding the Fourth Proportional to 161,067.27, 222,384.05 and 100,665.07

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Solution

The fourth proportional to 161,067.27, 222,384.05 and 100,665.07 is: 138,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,067.27 : 222,384.05 = 100,665.07 : x
  2. Step 2: Convert to fraction form
    161,067.27/222,384.05 = 100,665.07/x
  3. Step 3: Cross multiply
    161,067.27x = 222,384.05 × 100,665.07
  4. Step 4: Simplify right side
    161,067.27x = 22,386,305,960.13
  5. Step 5: Solve for x
    x = 22,386,305,960.13/161,067.27
  6. Step 6: Final answer
    x = 138,987.31

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1.5x scale

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.