Home / 211,118.50-291,346.70-115,634.10

Finding the Fourth Proportional to 211,118.50, 291,346.70 and 115,634.10

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Solution

The fourth proportional to 211,118.50, 291,346.70 and 115,634.10 is: 159,576.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,118.50 : 291,346.70 = 115,634.10 : x
  2. Step 2: Convert to fraction form
    211,118.50/291,346.70 = 115,634.10/x
  3. Step 3: Cross multiply
    211,118.50x = 291,346.70 × 115,634.10
  4. Step 4: Simplify right side
    211,118.50x = 33,689,613,442.47
  5. Step 5: Solve for x
    x = 33,689,613,442.47/211,118.50
  6. Step 6: Final answer
    x = 159,576.79

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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.