Home / 211,114.44-291,265.64-120,405.20

Finding the Fourth Proportional to 211,114.44, 291,265.64 and 120,405.20

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Solution

The fourth proportional to 211,114.44, 291,265.64 and 120,405.20 is: 166,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,114.44 : 291,265.64 = 120,405.20 : x
  2. Step 2: Convert to fraction form
    211,114.44/291,265.64 = 120,405.20/x
  3. Step 3: Cross multiply
    211,114.44x = 291,265.64 × 120,405.20
  4. Step 4: Simplify right side
    211,114.44x = 35,069,897,637.33
  5. Step 5: Solve for x
    x = 35,069,897,637.33/211,114.44
  6. Step 6: Final answer
    x = 166,117.95

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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.