Home / 211,525.56-291,899.79-120,875.76

Finding the Fourth Proportional to 211,525.56, 291,899.79 and 120,875.76

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Solution

The fourth proportional to 211,525.56, 291,899.79 and 120,875.76 is: 166,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,525.56 : 291,899.79 = 120,875.76 : x
  2. Step 2: Convert to fraction form
    211,525.56/291,899.79 = 120,875.76/x
  3. Step 3: Cross multiply
    211,525.56x = 291,899.79 × 120,875.76
  4. Step 4: Simplify right side
    211,525.56x = 35,283,608,960.09
  5. Step 5: Solve for x
    x = 35,283,608,960.09/211,525.56
  6. Step 6: Final answer
    x = 166,805.42

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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.