Home / 210,997.05-291,209.85-120,382.59

Finding the Fourth Proportional to 210,997.05, 291,209.85 and 120,382.59

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Solution

The fourth proportional to 210,997.05, 291,209.85 and 120,382.59 is: 166,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,997.05 : 291,209.85 = 120,382.59 : x
  2. Step 2: Convert to fraction form
    210,997.05/291,209.85 = 120,382.59/x
  3. Step 3: Cross multiply
    210,997.05x = 291,209.85 × 120,382.59
  4. Step 4: Simplify right side
    210,997.05x = 35,056,595,976.51
  5. Step 5: Solve for x
    x = 35,056,595,976.51/210,997.05
  6. Step 6: Final answer
    x = 166,147.33

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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.