Home / 153,610.68-211,961.82-85,619.58

Finding the Fourth Proportional to 153,610.68, 211,961.82 and 85,619.58

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Solution

The fourth proportional to 153,610.68, 211,961.82 and 85,619.58 is: 118,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,610.68 : 211,961.82 = 85,619.58 : x
  2. Step 2: Convert to fraction form
    153,610.68/211,961.82 = 85,619.58/x
  3. Step 3: Cross multiply
    153,610.68x = 211,961.82 × 85,619.58
  4. Step 4: Simplify right side
    153,610.68x = 18,148,082,004.44
  5. Step 5: Solve for x
    x = 18,148,082,004.44/153,610.68
  6. Step 6: Final answer
    x = 118,143.36

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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.