Home / 211,028.93-291,192.81-120,379.49

Finding the Fourth Proportional to 211,028.93, 291,192.81 and 120,379.49

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Solution

The fourth proportional to 211,028.93, 291,192.81 and 120,379.49 is: 166,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,028.93 : 291,192.81 = 120,379.49 : x
  2. Step 2: Convert to fraction form
    211,028.93/291,192.81 = 120,379.49/x
  3. Step 3: Cross multiply
    211,028.93x = 291,192.81 × 120,379.49
  4. Step 4: Simplify right side
    211,028.93x = 35,053,641,959.47
  5. Step 5: Solve for x
    x = 35,053,641,959.47/211,028.93
  6. Step 6: Final answer
    x = 166,108.23

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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.