Home / 211,982.22-292,521.69-121,338.90

Finding the Fourth Proportional to 211,982.22, 292,521.69 and 121,338.90

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Solution

The fourth proportional to 211,982.22, 292,521.69 and 121,338.90 is: 167,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,982.22 : 292,521.69 = 121,338.90 : x
  2. Step 2: Convert to fraction form
    211,982.22/292,521.69 = 121,338.90/x
  3. Step 3: Cross multiply
    211,982.22x = 292,521.69 × 121,338.90
  4. Step 4: Simplify right side
    211,982.22x = 35,494,260,090.74
  5. Step 5: Solve for x
    x = 35,494,260,090.74/211,982.22
  6. Step 6: Final answer
    x = 167,439.80

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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.