Home / 211,147.86-291,388.77-120,502.02

Finding the Fourth Proportional to 211,147.86, 291,388.77 and 120,502.02

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Solution

The fourth proportional to 211,147.86, 291,388.77 and 120,502.02 is: 166,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,147.86 : 291,388.77 = 120,502.02 : x
  2. Step 2: Convert to fraction form
    211,147.86/291,388.77 = 120,502.02/x
  3. Step 3: Cross multiply
    211,147.86x = 291,388.77 × 120,502.02
  4. Step 4: Simplify right side
    211,147.86x = 35,112,935,390.32
  5. Step 5: Solve for x
    x = 35,112,935,390.32/211,147.86
  6. Step 6: Final answer
    x = 166,295.48

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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.