Home / 211,651.36-292,092-139,906.96

Finding the Fourth Proportional to 211,651.36, 292,092 and 139,906.96

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Solution

The fourth proportional to 211,651.36, 292,092 and 139,906.96 is: 193,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,651.36 : 292,092 = 139,906.96 : x
  2. Step 2: Convert to fraction form
    211,651.36/292,092 = 139,906.96/x
  3. Step 3: Cross multiply
    211,651.36x = 292,092 × 139,906.96
  4. Step 4: Simplify right side
    211,651.36x = 40,865,703,760.32
  5. Step 5: Solve for x
    x = 40,865,703,760.32/211,651.36
  6. Step 6: Final answer
    x = 193,080.28

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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.