Home / 100,396.26-138,536.57-60,108.98

Finding the Fourth Proportional to 100,396.26, 138,536.57 and 60,108.98

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Solution

The fourth proportional to 100,396.26, 138,536.57 and 60,108.98 is: 82,944.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,396.26 : 138,536.57 = 60,108.98 : x
  2. Step 2: Convert to fraction form
    100,396.26/138,536.57 = 60,108.98/x
  3. Step 3: Cross multiply
    100,396.26x = 138,536.57 × 60,108.98
  4. Step 4: Simplify right side
    100,396.26x = 8,327,291,372.99
  5. Step 5: Solve for x
    x = 8,327,291,372.99/100,396.26
  6. Step 6: Final answer
    x = 82,944.24

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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.